diff --git a/src/components/Graph/GraphEditor.vue b/src/components/Graph/GraphEditor.vue
index 7ca43f0..ad9c498 100644
--- a/src/components/Graph/GraphEditor.vue
+++ b/src/components/Graph/GraphEditor.vue
@@ -319,7 +319,8 @@ export default {
                 },
                 color: {
                   type: 'constant',
-                  value: '#1F77B4'
+                  value: '#1F77B4',
+                  opacity: 100
                 },
                 label: {
                   source: null,
diff --git a/src/components/Graph/NodeColorSettings.vue b/src/components/Graph/NodeColorSettings.vue
index 2dcdbd1..cd7e459 100644
--- a/src/components/Graph/NodeColorSettings.vue
+++ b/src/components/Graph/NodeColorSettings.vue
@@ -57,10 +57,20 @@
     </template>
   </Field>
 
+  <Field label="Opacity" fieldContainerClassName="test_node_opacity">
+    <NumericInput
+      :value="modelValue.opacity"
+      :showSlider="true"
+      :integerOnly="true"
+      :max="100"
+      :min="0"
+      units="%"
+      @update="updateSettings('opacity', $event)"
+    />
+  </Field>
+
   <Field
-    v-if="
-      modelValue.sourceUsage === 'map_to' || modelValue.type === 'calculated'
-    "
+    v-if="modelValue.type === 'map_to' || modelValue.type === 'calculated'"
     label="Color as"
     fieldContainerClassName="test_node_color_as"
   >
@@ -89,6 +99,7 @@
 <script>
 import { markRaw } from 'vue'
 import { applyPureReactInVue } from 'veaury'
+import NumericInput from 'react-chart-editor/lib/components/widgets/NumericInput'
 import Dropdown from 'react-chart-editor/lib/components/widgets/Dropdown'
 import RadioBlocks from 'react-chart-editor/lib/components/widgets/RadioBlocks'
 import ColorscalePicker from 'react-chart-editor/lib/components/widgets/ColorscalePicker'
@@ -98,6 +109,7 @@ import 'react-chart-editor/lib/react-chart-editor.css'
 
 export default {
   components: {
+    NumericInput: applyPureReactInVue(NumericInput),
     Dropdown: applyPureReactInVue(Dropdown),
     RadioBlocks: applyPureReactInVue(RadioBlocks),
     Field: applyPureReactInVue(Field),
@@ -134,19 +146,21 @@ export default {
         { label: 'Map to', value: 'map_to' }
       ]),
       defaultColorSettings: {
-        constant: { value: '#1F77B4' },
+        constant: { value: '#1F77B4', opacity: 100 },
         variable: {
           source: null,
           sourceUsage: 'map_to',
           colorscale: null,
           mode: 'categorical',
-          colorscaleDirection: 'normal'
+          colorscaleDirection: 'normal',
+          opacity: 100
         },
         calculated: {
           method: 'degree',
           colorscale: null,
           mode: 'continious',
-          colorscaleDirection: 'normal'
+          colorscaleDirection: 'normal',
+          opacity: 100
         }
       }
     }
diff --git a/src/lib/graphHelper.js b/src/lib/graphHelper.js
index 9a846d1..e94dd75 100644
--- a/src/lib/graphHelper.js
+++ b/src/lib/graphHelper.js
@@ -161,9 +161,14 @@ function getUpdateSizeMethod(graph, sizeSettings) {
   }
 }
 
-function getDirectVariableColorUpdateMethod(source) {
-  return attributes =>
-    (attributes.color = tinycolor(attributes.data[source]).toHexString())
+function getDirectVariableColorUpdateMethod(source, opacity = 100) {
+  return attributes => {
+    const color = tinycolor(attributes.data[source])
+    const colorOpacity = color.getAlpha()
+    attributes.color = color
+      .setAlpha((opacity / 100) * colorOpacity)
+      .toHex8String()
+  }
 }
 
 function getUpdateNodeColorMethod(graph, colorSettings) {
@@ -175,10 +180,16 @@ function getUpdateNodeColorMethod(graph, colorSettings) {
     colorscale,
     colorscaleDirection,
     mode,
-    method
+    method,
+    opacity
   } = colorSettings
   if (type === 'constant') {
-    return attributes => (attributes.color = value)
+    const color = tinycolor(value)
+    const colorOpacity = color.getAlpha()
+    return attributes =>
+      (attributes.color = color
+        .setAlpha((opacity / 100) * colorOpacity)
+        .toHex8String())
   } else if (type === 'variable') {
     return sourceUsage === 'map_to'
       ? getColorMethod(
@@ -187,9 +198,10 @@ function getUpdateNodeColorMethod(graph, colorSettings) {
           (nodeId, attributes) => attributes.data[source],
           colorscale,
           colorscaleDirection,
-          getNodeValueScale
+          getNodeValueScale,
+          opacity
         )
-      : getDirectVariableColorUpdateMethod(source)
+      : getDirectVariableColorUpdateMethod(source, opacity)
   } else {
     return getColorMethod(
       graph,
@@ -197,7 +209,8 @@ function getUpdateNodeColorMethod(graph, colorSettings) {
       nodeId => graph[method](nodeId),
       colorscale,
       colorscaleDirection,
-      getNodeValueScale
+      getNodeValueScale,
+      opacity
     )
   }
 }
@@ -244,8 +257,10 @@ function getColorMethod(
   sourceGetter,
   selectedColorscale,
   colorscaleDirection,
-  valueScaleGetter
+  valueScaleGetter,
+  opacity = 100
 ) {
+  const opacityFactor = opacity / 100
   const valueScale = valueScaleGetter(graph, sourceGetter)
   let colorscale = selectedColorscale || DEFAULT_SCALE
   if (colorscaleDirection === 'reversed') {
@@ -261,7 +276,9 @@ function getColorMethod(
     )
     return (attributes, nodeId) => {
       const category = sourceGetter(nodeId, attributes)
-      attributes.color = colorMap[category]
+      attributes.color = tinycolor(colorMap[category])
+        .setAlpha(opacityFactor)
+        .toHex8String()
     }
   } else {
     const min = valueScale[0]
@@ -274,14 +291,18 @@ function getColorMethod(
       const value = sourceGetter(nodeId, attributes)
       const normalizedValue = (value - min) / (max - min)
       if (isNaN(normalizedValue)) {
-        attributes.color = '#000000'
+        attributes.color = tinycolor('#000000')
+          .setAlpha(opacityFactor)
+          .toHex8String()
         return
       }
       const exactMatch = normalizedColorscale.find(
         ([value]) => value === normalizedValue
       )
       if (exactMatch) {
-        attributes.color = tinycolor(exactMatch[1]).toHexString()
+        attributes.color = tinycolor(exactMatch[1])
+          .setAlpha(opacityFactor)
+          .toHex8String()
         return
       }
 
@@ -305,7 +326,9 @@ function getColorMethod(
         r: r0 + interpolationFactor * (r1 - r0),
         g: g0 + interpolationFactor * (g1 - g0),
         b: b0 + interpolationFactor * (b1 - b0)
-      }).toHexString()
+      })
+        .setAlpha(opacityFactor)
+        .toHex8String()
     }
   }
 }
diff --git a/src/lib/storedInquiries/_migrations.js b/src/lib/storedInquiries/_migrations.js
index 8121a70..a1f92ea 100644
--- a/src/lib/storedInquiries/_migrations.js
+++ b/src/lib/storedInquiries/_migrations.js
@@ -1,12 +1,21 @@
 export default {
   _migrate(installedVersion, inquiries) {
-    if (installedVersion === 1) {
-      inquiries.forEach(inquire => {
-        inquire.viewType = 'chart'
-        inquire.viewOptions = inquire.chart
-        delete inquire.chart
+    if (installedVersion < 2) {
+      inquiries.forEach(inquiry => {
+        inquiry.viewType = 'chart'
+        inquiry.viewOptions = inquiry.chart
+        delete inquiry.chart
       })
-      return inquiries
     }
+
+    if (installedVersion < 3) {
+      inquiries.forEach(inquiry => {
+        if (inquiry.viewType === 'graph') {
+          inquiry.viewOptions.style.nodes.color.opacity = 100
+        }
+      })
+    }
+
+    return inquiries
   }
 }
diff --git a/src/lib/storedInquiries/index.js b/src/lib/storedInquiries/index.js
index 2257d5b..94b546e 100644
--- a/src/lib/storedInquiries/index.js
+++ b/src/lib/storedInquiries/index.js
@@ -7,7 +7,7 @@ const migrate = migration._migrate
 const myInquiriesKey = 'myInquiries'
 
 export default {
-  version: 2,
+  version: 3,
   myInquiriesKey,
   getStoredInquiries() {
     let myInquiries = JSON.parse(localStorage.getItem(myInquiriesKey))
@@ -21,7 +21,13 @@ export default {
       return []
     }
 
-    return (myInquiries && myInquiries.inquiries) || []
+    if (myInquiries.version === 2) {
+      myInquiries = migrate(2, myInquiries.inquiries)
+      this.updateStorage(myInquiries)
+      return myInquiries
+    }
+
+    return myInquiries.inquiries || []
   },
 
   duplicateInquiry(baseInquiry) {
@@ -82,11 +88,11 @@ export default {
 
   importInquiries() {
     return fu.importFile().then(str => {
-      const inquires = this.deserialiseInquiries(str)
+      const inquiries = this.deserialiseInquiries(str)
 
-      events.send('inquiry.import', inquires.length)
+      events.send('inquiry.import', inquiries.length)
 
-      return inquires
+      return inquiries
     })
   },
   export(inquiryList, fileName) {
diff --git a/tests/components/Graph/GraphEditor.spec.js b/tests/components/Graph/GraphEditor.spec.js
index 4042270..fa09d50 100644
--- a/tests/components/Graph/GraphEditor.spec.js
+++ b/tests/components/Graph/GraphEditor.spec.js
@@ -24,7 +24,8 @@ const defaultInitOptions = {
       },
       color: {
         type: 'constant',
-        value: '#1F77B4'
+        value: '#1F77B4',
+        opacity: 100
       },
       label: {
         source: null,
@@ -404,7 +405,7 @@ describe('GraphEditor', () => {
           doc: [
             '{"type": 0, "node_id": 1, "color": "#ff0000", "points": 5}',
             '{"type": 0, "node_id": 2, "color": "#abcdff", "points": 15}',
-            '{"type": 0, "node_id": 3, "color": "#123456", "points": 10}',
+            '{"type": 0, "node_id": 3, "color": "#12345680", "points": 10}',
             '{"type": 1, "source": 2, "target": 3}'
           ]
         },
@@ -440,11 +441,11 @@ describe('GraphEditor', () => {
     // Set constant color
     await wrapper
       .findAllComponents({ name: 'ColorPicker' })[1]
-      .vm.$emit('colorChange', '#ff00ff')
+      .vm.$emit('colorChange', '#ff00ff80')
 
-    expect(graph.export().nodes[0].attributes.color).to.equal('#ff00ff')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#ff00ff')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#ff00ff')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#ff00ff80')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#ff00ff80')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#ff00ff80')
 
     // Switch to Variable
     const variable = wrapper.findAll('.test_node_color .radio-block__option')[1]
@@ -459,27 +460,27 @@ describe('GraphEditor', () => {
 
     await wrapper.findAll('.Select__menu .Select__option')[2].trigger('click')
 
-    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#bdea75')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#86d780')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6eff')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#bdea75ff')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#86d780ff')
 
     // Select Direct mapping
     await wrapper
       .find('.test_node_color_mapping_mode .radio-block__option')
       .trigger('click')
 
-    expect(graph.export().nodes[0].attributes.color).to.equal('#ff0000')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#abcdff')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#123456')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#ff0000ff')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#abcdffff')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#12345680')
 
     // Switch to Calculated
     const calculated = wrapper.findAll(
       '.test_node_color .radio-block__option'
     )[2]
     await calculated.trigger('click')
-    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#2a4858')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#2a4858')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6eff')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#2a4858ff')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#2a4858ff')
     await nextTick()
 
     // Choose in-degree
@@ -491,45 +492,68 @@ describe('GraphEditor', () => {
 
     await wrapper.findAll('.Select__menu .Select__option')[1].trigger('click')
 
-    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#2a4858')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6eff')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#fafa6eff')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#2a4858ff')
+    await nextTick()
+
+    // Set another opacity for calculated color
+    let opacityInput = wrapper.find(
+      '.test_node_opacity input.numeric-input__number'
+    )
+    await opacityInput.setValue(50)
+    opacityInput.wrapperElement.dispatchEvent(
+      new Event('blur', { bubbles: true })
+    )
+    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6e80')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#fafa6e80')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#2a485880')
     await nextTick()
 
     // Set Color as to Categorical
     await wrapper
       .findAll('.test_node_color_as .radio-block__option')[1]
       .trigger('click')
-    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#bdea75')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#fafa6e80')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#fafa6e80')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#bdea7580')
     await nextTick()
 
     // Change colorscale direction
     await wrapper
       .findAll('.test_node_color_colorscale_direction .radio-block__option')[1]
       .trigger('click')
-    expect(graph.export().nodes[0].attributes.color).to.equal('#2a4858')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#2a4858')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#1f5f70')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#2a485880')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#2a485880')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#1f5f7080')
     await nextTick()
 
     // Switch to Variable
     await variable.trigger('click')
 
     // The latest settings from variable mode are applied
-    expect(graph.export().nodes[0].attributes.color).to.equal('#ff0000')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#abcdff')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#123456')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#ff0000ff')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#abcdffff')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#12345680')
 
     // Switch to Constant
     const constant = wrapper.findAll('.test_node_color .radio-block__option')[0]
     await constant.trigger('click')
 
     // The latest settings from constant mode are applied
-    expect(graph.export().nodes[0].attributes.color).to.equal('#ff00ff')
-    expect(graph.export().nodes[1].attributes.color).to.equal('#ff00ff')
-    expect(graph.export().nodes[2].attributes.color).to.equal('#ff00ff')
+    expect(graph.export().nodes[0].attributes.color).to.equal('#ff00ff80')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#ff00ff80')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#ff00ff80')
+
+    // Set another opacity for constant color
+    await opacityInput.setValue(50)
+    opacityInput.wrapperElement.dispatchEvent(
+      new Event('blur', { bubbles: true })
+    )
+    expect(graph.export().nodes[0].attributes.color).to.equal('#ff00ff40')
+    expect(graph.export().nodes[1].attributes.color).to.equal('#ff00ff40')
+    expect(graph.export().nodes[2].attributes.color).to.equal('#ff00ff40')
+    await nextTick()
 
     wrapper.unmount()
   })
@@ -840,26 +864,26 @@ describe('GraphEditor', () => {
       )
     await wrapper.findAll('.Select__menu .Select__option')[5].trigger('click')
 
-    expect(graph.export().edges[0].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().edges[1].attributes.color).to.equal('#bdea75')
-    expect(graph.export().edges[2].attributes.color).to.equal('#86d780')
+    expect(graph.export().edges[0].attributes.color).to.equal('#fafa6eff')
+    expect(graph.export().edges[1].attributes.color).to.equal('#bdea75ff')
+    expect(graph.export().edges[2].attributes.color).to.equal('#86d780ff')
 
     // Set Color as to Continious
     await wrapper
       .findAll('.test_edge_color_as .radio-block__option')[0]
       .trigger('click')
-    expect(graph.export().edges[0].attributes.color).to.equal('#fafa6e')
-    expect(graph.export().edges[1].attributes.color).to.equal('#39b48d')
-    expect(graph.export().edges[2].attributes.color).to.equal('#2a4858')
+    expect(graph.export().edges[0].attributes.color).to.equal('#fafa6eff')
+    expect(graph.export().edges[1].attributes.color).to.equal('#39b48dff')
+    expect(graph.export().edges[2].attributes.color).to.equal('#2a4858ff')
     await nextTick()
 
     // Change colorscale direction
     await wrapper
       .findAll('.test_edge_color_colorscale_direction .radio-block__option')[1]
       .trigger('click')
-    expect(graph.export().edges[0].attributes.color).to.equal('#2a4858')
-    expect(graph.export().edges[1].attributes.color).to.equal('#139f8e')
-    expect(graph.export().edges[2].attributes.color).to.equal('#fafa6e')
+    expect(graph.export().edges[0].attributes.color).to.equal('#2a4858ff')
+    expect(graph.export().edges[1].attributes.color).to.equal('#139f8eff')
+    expect(graph.export().edges[2].attributes.color).to.equal('#fafa6eff')
     await nextTick()
 
     // Clear color source
@@ -883,9 +907,9 @@ describe('GraphEditor', () => {
       .find('.test_edge_color_mapping_mode .radio-block__option')
       .trigger('click')
 
-    expect(graph.export().edges[0].attributes.color).to.equal('#ff0000')
-    expect(graph.export().edges[1].attributes.color).to.equal('#abcdff')
-    expect(graph.export().edges[2].attributes.color).to.equal('#123456')
+    expect(graph.export().edges[0].attributes.color).to.equal('#ff0000ff')
+    expect(graph.export().edges[1].attributes.color).to.equal('#abcdffff')
+    expect(graph.export().edges[2].attributes.color).to.equal('#123456ff')
 
     // Switch to Constant
     const constant = wrapper.findAll('.test_edge_color .radio-block__option')[0]
diff --git a/tests/lib/graphHelper.spec.js b/tests/lib/graphHelper.spec.js
index 7bb7953..7dc4efe 100644
--- a/tests/lib/graphHelper.spec.js
+++ b/tests/lib/graphHelper.spec.js
@@ -533,7 +533,8 @@ describe('graphHelper.js', () => {
     graphHelper.updateNodes(graph, {
       color: {
         type: 'constant',
-        value: '#a1b8c3'
+        value: '#a1b8c380',
+        opacity: 50
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -541,14 +542,14 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1 },
-          color: '#a1b8c3'
+          color: '#a1b8c340'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2 },
-          color: '#a1b8c3'
+          color: '#a1b8c340'
         }
       }
     ])
@@ -592,7 +593,7 @@ describe('graphHelper.js', () => {
       doc: [
         '{"type": 0, "node_id": 1, "color": "red", "points": 5}',
         '{"type": 0, "node_id": 2, "color": "#abcdff", "points": 15}',
-        '{"type": 0, "node_id": 3, "color": "#123456", "points": 10}'
+        '{"type": 0, "node_id": 3, "color": "#12345680", "points": 10}'
       ]
     }
     const graph = new Graph()
@@ -609,7 +610,8 @@ describe('graphHelper.js', () => {
       color: {
         type: 'variable',
         source: 'color',
-        sourceUsage: 'direct'
+        sourceUsage: 'direct',
+        opacity: 50
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -617,21 +619,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, color: 'red', points: 5 },
-          color: '#ff0000'
+          color: '#ff000080'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, color: '#abcdff', points: 15 },
-          color: '#abcdff'
+          color: '#abcdff80'
         }
       },
       {
         key: '3',
         attributes: {
-          data: { type: 0, node_id: 3, color: '#123456', points: 10 },
-          color: '#123456'
+          data: { type: 0, node_id: 3, color: '#12345680', points: 10 },
+          color: '#12345640'
         }
       }
     ])
@@ -644,7 +646,8 @@ describe('graphHelper.js', () => {
         sourceUsage: 'map_to',
         colorscale,
         mode: 'categorical',
-        colorscaleDirection: 'normal'
+        colorscaleDirection: 'normal',
+        opacity: 50
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -652,21 +655,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, color: 'red', points: 5 },
-          color: '#aaaaff'
+          color: '#aaaaff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, color: '#abcdff', points: 15 },
-          color: '#6666ff'
+          color: '#6666ff80'
         }
       },
       {
         key: '3',
         attributes: {
-          data: { type: 0, node_id: 3, color: '#123456', points: 10 },
-          color: '#8888ff'
+          data: { type: 0, node_id: 3, color: '#12345680', points: 10 },
+          color: '#8888ff80'
         }
       }
     ])
@@ -678,7 +681,8 @@ describe('graphHelper.js', () => {
         sourceUsage: 'map_to',
         colorscale,
         mode: 'categorical',
-        colorscaleDirection: 'reversed'
+        colorscaleDirection: 'reversed',
+        opacity: 50
       }
     })
 
@@ -687,21 +691,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, color: 'red', points: 5 },
-          color: '#0000ff'
+          color: '#0000ff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, color: '#abcdff', points: 15 },
-          color: '#6666ff'
+          color: '#6666ff80'
         }
       },
       {
         key: '3',
         attributes: {
-          data: { type: 0, node_id: 3, color: '#123456', points: 10 },
-          color: '#4444ff'
+          data: { type: 0, node_id: 3, color: '#12345680', points: 10 },
+          color: '#4444ff80'
         }
       }
     ])
@@ -713,7 +717,8 @@ describe('graphHelper.js', () => {
         sourceUsage: 'map_to',
         colorscale,
         mode: 'continious',
-        colorscaleDirection: 'normal'
+        colorscaleDirection: 'normal',
+        opacity: 50
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -721,21 +726,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, color: 'red', points: 5 },
-          color: '#aaaaff'
+          color: '#aaaaff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, color: '#abcdff', points: 15 },
-          color: '#0000ff'
+          color: '#0000ff80'
         }
       },
       {
         key: '3',
         attributes: {
-          data: { type: 0, node_id: 3, color: '#123456', points: 10 },
-          color: '#6666ff'
+          data: { type: 0, node_id: 3, color: '#12345680', points: 10 },
+          color: '#6666ff80'
         }
       }
     ])
@@ -747,7 +752,8 @@ describe('graphHelper.js', () => {
         sourceUsage: 'map_to',
         colorscale,
         mode: 'continious',
-        colorscaleDirection: 'reversed'
+        colorscaleDirection: 'reversed',
+        opacity: 50
       }
     })
 
@@ -756,21 +762,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, color: 'red', points: 5 },
-          color: '#0000ff'
+          color: '#0000ff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, color: '#abcdff', points: 15 },
-          color: '#aaaaff'
+          color: '#aaaaff80'
         }
       },
       {
         key: '3',
         attributes: {
-          data: { type: 0, node_id: 3, color: '#123456', points: 10 },
-          color: '#6666ff'
+          data: { type: 0, node_id: 3, color: '#12345680', points: 10 },
+          color: '#6666ff80'
         }
       }
     ])
@@ -782,7 +788,8 @@ describe('graphHelper.js', () => {
         sourceUsage: 'map_to',
         colorscale: ['#aaaaff', '#0000ff'],
         mode: 'continious',
-        colorscaleDirection: 'normal'
+        colorscaleDirection: 'normal',
+        opacity: 50
       }
     })
 
@@ -791,21 +798,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, color: 'red', points: 5 },
-          color: '#aaaaff'
+          color: '#aaaaff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, color: '#abcdff', points: 15 },
-          color: '#0000ff'
+          color: '#0000ff80'
         }
       },
       {
         key: '3',
         attributes: {
-          data: { type: 0, node_id: 3, color: '#123456', points: 10 },
-          color: '#5555ff'
+          data: { type: 0, node_id: 3, color: '#12345680', points: 10 },
+          color: '#5555ff80'
         }
       }
     ])
@@ -834,7 +841,8 @@ describe('graphHelper.js', () => {
         source: 'country',
         sourceUsage: 'map_to',
         mode: 'continious',
-        colorscaleDirection: 'normal'
+        colorscaleDirection: 'normal',
+        opacity: 100
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -842,14 +850,14 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1, country: 'NL' },
-          color: '#000000'
+          color: '#000000ff'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2, country: 'GB' },
-          color: '#000000'
+          color: '#000000ff'
         }
       }
     ])
@@ -887,15 +895,15 @@ describe('graphHelper.js', () => {
     expect(graph.export().edges.map(edge => edge.attributes)).to.eql([
       {
         data: { type: 1, source: 1, target: 2, color: 'red', weight: 5 },
-        color: '#ff0000'
+        color: '#ff0000ff'
       },
       {
         data: { type: 1, source: 1, target: 3, color: 'red', weight: 15 },
-        color: '#ff0000'
+        color: '#ff0000ff'
       },
       {
         data: { type: 1, source: 2, target: 3, color: 'red', weight: 10 },
-        color: '#ff0000'
+        color: '#ff0000ff'
       }
     ])
 
@@ -914,15 +922,15 @@ describe('graphHelper.js', () => {
     expect(graph.export().edges.map(edge => edge.attributes)).to.eql([
       {
         data: { type: 1, source: 1, target: 2, color: 'red', weight: 5 },
-        color: '#aaaaff'
+        color: '#aaaaffff'
       },
       {
         data: { type: 1, source: 1, target: 3, color: 'red', weight: 15 },
-        color: '#6666ff'
+        color: '#6666ffff'
       },
       {
         data: { type: 1, source: 2, target: 3, color: 'red', weight: 10 },
-        color: '#8888ff'
+        color: '#8888ffff'
       }
     ])
 
@@ -940,15 +948,15 @@ describe('graphHelper.js', () => {
     expect(graph.export().edges.map(edge => edge.attributes)).to.eql([
       {
         data: { type: 1, source: 1, target: 2, color: 'red', weight: 5 },
-        color: '#0000ff'
+        color: '#0000ffff'
       },
       {
         data: { type: 1, source: 1, target: 3, color: 'red', weight: 15 },
-        color: '#6666ff'
+        color: '#6666ffff'
       },
       {
         data: { type: 1, source: 2, target: 3, color: 'red', weight: 10 },
-        color: '#4444ff'
+        color: '#4444ffff'
       }
     ])
 
@@ -966,15 +974,15 @@ describe('graphHelper.js', () => {
     expect(graph.export().edges.map(edge => edge.attributes)).to.eql([
       {
         data: { type: 1, source: 1, target: 2, color: 'red', weight: 5 },
-        color: '#aaaaff'
+        color: '#aaaaffff'
       },
       {
         data: { type: 1, source: 1, target: 3, color: 'red', weight: 15 },
-        color: '#0000ff'
+        color: '#0000ffff'
       },
       {
         data: { type: 1, source: 2, target: 3, color: 'red', weight: 10 },
-        color: '#6666ff'
+        color: '#6666ffff'
       }
     ])
 
@@ -992,15 +1000,15 @@ describe('graphHelper.js', () => {
     expect(graph.export().edges.map(edge => edge.attributes)).to.eql([
       {
         data: { type: 1, source: 1, target: 2, color: 'red', weight: 5 },
-        color: '#0000ff'
+        color: '#0000ffff'
       },
       {
         data: { type: 1, source: 1, target: 3, color: 'red', weight: 15 },
-        color: '#aaaaff'
+        color: '#aaaaffff'
       },
       {
         data: { type: 1, source: 2, target: 3, color: 'red', weight: 10 },
-        color: '#6666ff'
+        color: '#6666ffff'
       }
     ])
   })
@@ -1035,7 +1043,8 @@ describe('graphHelper.js', () => {
         method: 'degree',
         colorscale,
         mode: 'categorical',
-        colorscaleDirection: 'normal'
+        colorscaleDirection: 'normal',
+        opacity: 50
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -1043,21 +1052,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1 },
-          color: '#aaaaff'
+          color: '#aaaaff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2 },
-          color: '#8888ff'
+          color: '#8888ff80'
         }
       },
       {
         key: '3',
         attributes: {
           data: { type: 0, node_id: 3 },
-          color: '#8888ff'
+          color: '#8888ff80'
         }
       }
     ])
@@ -1068,7 +1077,8 @@ describe('graphHelper.js', () => {
         method: 'outDegree',
         colorscale,
         mode: 'categorical',
-        colorscaleDirection: 'reversed'
+        colorscaleDirection: 'reversed',
+        opacity: 50
       }
     })
 
@@ -1077,21 +1087,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1 },
-          color: '#0000ff'
+          color: '#0000ff80'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2 },
-          color: '#4444ff'
+          color: '#4444ff80'
         }
       },
       {
         key: '3',
         attributes: {
           data: { type: 0, node_id: 3 },
-          color: '#0000ff'
+          color: '#0000ff80'
         }
       }
     ])
@@ -1102,7 +1112,8 @@ describe('graphHelper.js', () => {
         method: 'degree',
         colorscale,
         mode: 'continious',
-        colorscaleDirection: 'normal'
+        colorscaleDirection: 'normal',
+        opacity: 100
       }
     })
     expect(graph.export().nodes).to.eql([
@@ -1110,21 +1121,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1 },
-          color: '#aaaaff'
+          color: '#aaaaffff'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2 },
-          color: '#0000ff'
+          color: '#0000ffff'
         }
       },
       {
         key: '3',
         attributes: {
           data: { type: 0, node_id: 3 },
-          color: '#0000ff'
+          color: '#0000ffff'
         }
       }
     ])
@@ -1135,7 +1146,8 @@ describe('graphHelper.js', () => {
         method: 'degree',
         colorscale,
         mode: 'continious',
-        colorscaleDirection: 'reversed'
+        colorscaleDirection: 'reversed',
+        opacity: 100
       }
     })
 
@@ -1144,21 +1156,21 @@ describe('graphHelper.js', () => {
         key: '1',
         attributes: {
           data: { type: 0, node_id: 1 },
-          color: '#0000ff'
+          color: '#0000ffff'
         }
       },
       {
         key: '2',
         attributes: {
           data: { type: 0, node_id: 2 },
-          color: '#aaaaff'
+          color: '#aaaaffff'
         }
       },
       {
         key: '3',
         attributes: {
           data: { type: 0, node_id: 3 },
-          color: '#aaaaff'
+          color: '#aaaaffff'
         }
       }
     ])
diff --git a/tests/lib/storedInquiries/storedInquiries.spec.js b/tests/lib/storedInquiries/storedInquiries.spec.js
index 16d5dda..e62c698 100644
--- a/tests/lib/storedInquiries/storedInquiries.spec.js
+++ b/tests/lib/storedInquiries/storedInquiries.spec.js
@@ -18,7 +18,7 @@ describe('storedInquiries.js', () => {
     expect(inquiries).to.eql([])
   })
 
-  it('getStoredInquiries migrate and returns inquiries of v1', () => {
+  it('getStoredInquiries migrates and returns inquiries of v1', () => {
     localStorage.setItem(
       'myQueries',
       JSON.stringify([
@@ -55,6 +55,113 @@ describe('storedInquiries.js', () => {
     ])
   })
 
+  it('getStoredInquiries migrates and returns inquiries of v2', () => {
+    localStorage.setItem(
+      'myInquiries',
+      JSON.stringify({
+        version: 2,
+        inquiries: [
+          {
+            id: 'Xh1Hc9v7P3mRPZVM59QiC',
+            query: 'SELECT * from doc',
+            viewType: 'graph',
+            viewOptions: {
+              structure: {
+                nodeId: 'node_id',
+                objectType: 'object_type',
+                edgeSource: 'source',
+                edgeTarget: 'target'
+              },
+              style: {
+                backgroundColor: 'white',
+                nodes: {
+                  size: { type: 'constant', value: 10 },
+                  color: {
+                    type: 'calculated',
+                    method: 'degree',
+                    colorscale: null,
+                    mode: 'continious',
+                    colorscaleDirection: 'reversed'
+                  },
+                  label: { source: 'label', color: '#444444' }
+                },
+                edges: {
+                  showDirection: true,
+                  size: { type: 'constant', value: 2 },
+                  color: { type: 'constant', value: '#a2b1c6' },
+                  label: { source: null, color: '#a2b1c6' }
+                }
+              },
+              layout: { type: 'circular', options: null }
+            },
+            name: 'student graph',
+            updatedAt: '2026-01-19T21:49:40.708Z',
+            createdAt: '2026-01-19T21:46:13.899Z'
+          },
+          {
+            id: 'Yh1Hc9v7P3mRPZVM59QiD',
+            query: 'SELECT * from test',
+            viewType: 'chart',
+            viewOptions: 'some chart view options',
+            name: 'student chart',
+            updatedAt: '2026-01-19T21:49:40.708Z',
+            createdAt: '2026-01-19T21:46:13.899Z'
+          }
+        ]
+      })
+    )
+    const inquiries = storedInquiries.getStoredInquiries()
+    expect(inquiries).to.eql([
+      {
+        id: 'Xh1Hc9v7P3mRPZVM59QiC',
+        query: 'SELECT * from doc',
+        viewType: 'graph',
+        viewOptions: {
+          structure: {
+            nodeId: 'node_id',
+            objectType: 'object_type',
+            edgeSource: 'source',
+            edgeTarget: 'target'
+          },
+          style: {
+            backgroundColor: 'white',
+            nodes: {
+              size: { type: 'constant', value: 10 },
+              color: {
+                type: 'calculated',
+                method: 'degree',
+                colorscale: null,
+                mode: 'continious',
+                colorscaleDirection: 'reversed',
+                opacity: 100
+              },
+              label: { source: 'label', color: '#444444' }
+            },
+            edges: {
+              showDirection: true,
+              size: { type: 'constant', value: 2 },
+              color: { type: 'constant', value: '#a2b1c6' },
+              label: { source: null, color: '#a2b1c6' }
+            }
+          },
+          layout: { type: 'circular', options: null }
+        },
+        name: 'student graph',
+        updatedAt: '2026-01-19T21:49:40.708Z',
+        createdAt: '2026-01-19T21:46:13.899Z'
+      },
+      {
+        id: 'Yh1Hc9v7P3mRPZVM59QiD',
+        query: 'SELECT * from test',
+        viewType: 'chart',
+        viewOptions: 'some chart view options',
+        name: 'student chart',
+        updatedAt: '2026-01-19T21:49:40.708Z',
+        createdAt: '2026-01-19T21:46:13.899Z'
+      }
+    ])
+  })
+
   it('updateStorage and getStoredInquiries', () => {
     const data = [{ id: 1 }, { id: 2 }]
     storedInquiries.updateStorage(data)
@@ -136,7 +243,7 @@ describe('storedInquiries.js', () => {
     const str = storedInquiries.serialiseInquiries(inquiryList)
     const parsedJson = JSON.parse(str)
 
-    expect(parsedJson.version).to.equal(2)
+    expect(parsedJson.version).to.equal(3)
     expect(parsedJson.inquiries).to.have.lengthOf(2)
     expect(parsedJson.inquiries[1]).to.eql(inquiryList[1])
     expect(parsedJson.inquiries[0]).to.eql({
@@ -215,7 +322,7 @@ describe('storedInquiries.js', () => {
   it('deserialiseInquiries generates new id to avoid duplication', () => {
     storedInquiries.updateStorage([{ id: 1 }])
     const str = `{
-      "version": 2,
+      "version": 3,
       "inquiries": [
         {
           "id": 1,
@@ -275,7 +382,7 @@ describe('storedInquiries.js', () => {
 
   it('importInquiries', async () => {
     const str = `{
-      "version": 2,
+      "version": 3,
       "inquiries": [{
         "id": 1,
         "name": "foo",
@@ -327,7 +434,7 @@ describe('storedInquiries.js', () => {
 
   it('readPredefinedInquiries', async () => {
     const str = `{
-      "version": 2,
+      "version": 3,
       "inquiries": [
       {
         "id": 1,