diff --git a/package.json b/package.json
index b2995e06..33d3835c 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
   "homepage": "http://wiki.openstreetmap.org/wiki/UMap",
   "dependencies": {
     "@tmcw/togeojson": "^5.8.0",
+    "colorbrewer": "^1.5.6",
     "csv2geojson": "5.1.1",
     "dompurify": "^3.0.3",
     "georsstogeojson": "^0.1.0",
@@ -55,6 +56,7 @@
     "leaflet.path.drag": "0.0.6",
     "leaflet.photon": "0.8.0",
     "osmtogeojson": "^3.0.0-beta.3",
+    "simple-statistics": "^7.8.3",
     "togpx": "^0.5.4",
     "tokml": "0.4.0"
   }
diff --git a/scripts/vendorsjs.sh b/scripts/vendorsjs.sh
index 751132fc..793fbeb5 100755
--- a/scripts/vendorsjs.sh
+++ b/scripts/vendorsjs.sh
@@ -26,5 +26,7 @@ mkdir -p umap/static/umap/vendors/tokml && cp -r node_modules/tokml/tokml.js uma
 mkdir -p umap/static/umap/vendors/locatecontrol/ && cp -r node_modules/leaflet.locatecontrol/dist/L.Control.Locate.css umap/static/umap/vendors/locatecontrol/
 mkdir -p umap/static/umap/vendors/locatecontrol/ && cp -r node_modules/leaflet.locatecontrol/src/L.Control.Locate.js umap/static/umap/vendors/locatecontrol/
 mkdir -p umap/static/umap/vendors/dompurify/ && cp -r node_modules/dompurify/dist/purify.js umap/static/umap/vendors/dompurify/
+mkdir -p umap/static/umap/vendors/colorbrewer/ && cp node_modules/colorbrewer/index.js umap/static/umap/vendors/colorbrewer/colorbrewer.js
+mkdir -p umap/static/umap/vendors/simple-statistics/ && cp node_modules/simple-statistics/dist/simple-statistics.min.js umap/static/umap/vendors/simple-statistics/
 
 echo 'Done!'
diff --git a/umap/static/umap/base.css b/umap/static/umap/base.css
index b5f1ce9a..12cd7d39 100644
--- a/umap/static/umap/base.css
+++ b/umap/static/umap/base.css
@@ -354,7 +354,8 @@ input.switch:checked ~ label:after {
 .button-bar.half {
     grid-template-columns: 1fr 1fr;
 }
-.umap-multiplechoice.by3 {
+.umap-multiplechoice.by3,
+.umap-multiplechoice.by5 {
     grid-template-columns: 1fr 1fr 1fr;
 }
 .umap-multiplechoice.by4 {
diff --git a/umap/static/umap/js/umap.controls.js b/umap/static/umap/js/umap.controls.js
index 78565975..62e0d83a 100644
--- a/umap/static/umap/js/umap.controls.js
+++ b/umap/static/umap/js/umap.controls.js
@@ -598,6 +598,7 @@ L.U.DataLayersControl = L.Control.extend({
 
 L.U.DataLayer.include({
   renderLegend: function (container) {
+    if (this.layer.renderLegend) return this.layer.renderLegend(container)
     const color = L.DomUtil.create('span', 'datalayer-color', container)
     color.style.backgroundColor = this.getColor()
   },
diff --git a/umap/static/umap/js/umap.features.js b/umap/static/umap/js/umap.features.js
index 7de50be8..5b3b8f7b 100644
--- a/umap/static/umap/js/umap.features.js
+++ b/umap/static/umap/js/umap.features.js
@@ -1,5 +1,5 @@
 L.U.FeatureMixin = {
-  staticOptions: {},
+  staticOptions: { mainColor: 'color' },
 
   initialize: function (map, latlng, options) {
     this.map = map
@@ -283,7 +283,7 @@ L.U.FeatureMixin = {
     } else if (L.Util.usableOption(this.properties._umap_options, option)) {
       value = this.properties._umap_options[option]
     } else if (this.datalayer) {
-      value = this.datalayer.getOption(option)
+      value = this.datalayer.getOption(option, this)
     } else {
       value = this.map.getOption(option)
     }
@@ -948,6 +948,7 @@ L.U.Polyline = L.Polyline.extend({
   staticOptions: {
     stroke: true,
     fill: false,
+    mainColor: 'color',
   },
 
   isSameClass: function (other) {
@@ -1084,6 +1085,9 @@ L.U.Polyline = L.Polyline.extend({
 L.U.Polygon = L.Polygon.extend({
   parentClass: L.Polygon,
   includes: [L.U.FeatureMixin, L.U.PathMixin],
+  staticOptions: {
+    mainColor: 'fillColor',
+  },
 
   isSameClass: function (other) {
     return other instanceof L.U.Polygon
diff --git a/umap/static/umap/js/umap.forms.js b/umap/static/umap/js/umap.forms.js
index 6faf6531..c75d01ec 100644
--- a/umap/static/umap/js/umap.forms.js
+++ b/umap/static/umap/js/umap.forms.js
@@ -379,6 +379,7 @@ L.FormBuilder.LayerTypeChooser = L.FormBuilder.Select.extend({
     ['Default', L._('Default')],
     ['Cluster', L._('Clustered')],
     ['Heat', L._('Heatmap')],
+    ['Choropleth', L._('Choropleth')],
   ],
 })
 
@@ -732,7 +733,7 @@ L.FormBuilder.MultiChoice = L.FormBuilder.Element.extend({
   fetch: function () {
     let value = (this.backup = this.toHTML())
     if (!this.container.querySelector(`input[type="radio"][value="${value}"]`))
-      value = this.default
+      value = typeof(this.options.default) !== 'undefined' ? this.options.default : this.default
     this.container.querySelector(`input[type="radio"][value="${value}"]`).checked = true
   },
 
diff --git a/umap/static/umap/js/umap.layer.js b/umap/static/umap/js/umap.layer.js
index 790b0143..9525c217 100644
--- a/umap/static/umap/js/umap.layer.js
+++ b/umap/static/umap/js/umap.layer.js
@@ -106,6 +106,194 @@ L.U.Layer.Cluster = L.MarkerClusterGroup.extend({
   },
 })
 
+L.U.Layer.Choropleth = L.FeatureGroup.extend({
+  _type: 'Choropleth',
+  includes: [L.U.Layer],
+  canBrowse: true,
+  // Have defaults that better suit the choropleth mode.
+  defaults: {
+    color: 'white',
+    fillColor: 'red',
+    fillOpacity: 0.7,
+    weight: 2,
+  },
+  MODES: {
+    kmeans: L._('K-means'),
+    equidistant: L._('Equidistant'),
+    jenks: L._('Jenks-Fisher'),
+    quantiles: L._('Quantiles'),
+    manual: L._('Manual'),
+  },
+
+  initialize: function (datalayer) {
+    this.datalayer = datalayer
+    if (!L.Util.isObject(this.datalayer.options.choropleth)) {
+      this.datalayer.options.choropleth = {}
+    }
+    L.FeatureGroup.prototype.initialize.call(
+      this,
+      [],
+      this.datalayer.options.choropleth
+    )
+    this.datalayer.on('datachanged', this.redraw, this)
+  },
+
+  redraw: function () {
+    this.computeBreaks()
+    if (this._map) this.eachLayer(this._map.addLayer, this._map)
+  },
+
+  _getValue: function (feature) {
+    const key = this.datalayer.options.choropleth.property || 'value'
+    return +feature.properties[key] // TODO: should we catch values non castable to int ?
+  },
+
+  computeBreaks: function () {
+    const values = []
+    this.datalayer.eachLayer((layer) => {
+      let value = this._getValue(layer)
+      if (!isNaN(value)) values.push(value)
+    })
+    if (!values.length) {
+      this.options.breaks = []
+      this.options.colors = []
+      return
+    }
+    let mode = this.datalayer.options.choropleth.mode,
+      classes = +this.datalayer.options.choropleth.classes || 5,
+      breaks = []
+    if (mode === 'manual') {
+      const manualBreaks = this.datalayer.options.choropleth.breaks
+      if (manualBreaks) {
+        breaks = manualBreaks.split(",").map(b => +b).filter(b => !isNaN(b))
+      }
+    } else if (mode === 'equidistant') {
+      breaks = ss.equalIntervalBreaks(values, classes)
+    } else if (mode === 'jenks') {
+      breaks = ss.jenks(values, classes)
+    } else if (mode === 'quantiles') {
+      const quantiles = [...Array(classes)].map((e, i) => i/classes).concat(1)
+      breaks = ss.quantile(values, quantiles)
+    } else {
+      breaks = ss.ckmeans(values, classes).map((cluster) => cluster[0])
+      breaks.push(ss.max(values))  // Needed for computing the legend
+    }
+    this.options.breaks = breaks
+    this.datalayer.options.choropleth.breaks = this.options.breaks.map(b => +b.toFixed(2)).join(',')
+    const fillColor = this.datalayer.getOption('fillColor') || this.defaults.fillColor
+    let colorScheme = this.datalayer.options.choropleth.brewer
+    if (!colorbrewer[colorScheme]) colorScheme = 'Blues'
+    this.options.colors = colorbrewer[colorScheme][breaks.length - 1] || []
+  },
+
+  getColor: function (feature) {
+    if (!feature) return // FIXME shold not happen
+    const featureValue = this._getValue(feature)
+    // Find the bucket/step/limit that this value is less than and give it that color
+    for (let i = 1; i < this.options.breaks.length; i++) {
+      if (featureValue <= this.options.breaks[i]) {
+        return this.options.colors[i - 1]
+      }
+    }
+  },
+
+  getOption: function (option, feature) {
+    if (feature && option === feature.staticOptions.mainColor) return this.getColor(feature)
+  },
+
+  addLayer: function (layer) {
+    // Do not add yet the layer to the map
+    // wait for datachanged event, so we want compute breaks once
+    var id = this.getLayerId(layer)
+    this._layers[id] = layer
+    return this
+  },
+
+  onAdd: function (map) {
+    this.computeBreaks()
+    L.FeatureGroup.prototype.onAdd.call(this, map)
+  },
+
+  postUpdate: function (e) {
+    if (e.helper.field === 'options.choropleth.breaks') {
+      this.datalayer.options.choropleth.mode = 'manual'
+      e.helper.builder.helpers["options.choropleth.mode"].fetch()
+    }
+    this.computeBreaks()
+    if (e.helper.field !== 'options.choropleth.breaks') {
+      e.helper.builder.helpers["options.choropleth.breaks"].fetch()
+    }
+  },
+
+  getEditableOptions: function () {
+    const brewerSchemes = Object.keys(colorbrewer)
+      .filter((k) => k !== 'schemeGroups')
+      .sort()
+
+    return [
+      [
+        'options.choropleth.property',
+        {
+          handler: 'Select',
+          selectOptions: this.datalayer._propertiesIndex,
+          label: L._('Choropleth property value'),
+        },
+      ],
+      [
+        'options.choropleth.brewer',
+        {
+          handler: 'Select',
+          label: L._('Choropleth color palette'),
+          selectOptions: brewerSchemes,
+        },
+      ],
+      [
+        'options.choropleth.classes',
+        {
+          handler: 'Range',
+          min: 3,
+          max: 9,
+          step: 1,
+          label: L._('Choropleth classes'),
+          helpText: L._('Number of desired classes (default 5)'),
+        },
+      ],
+      [
+        'options.choropleth.breaks',
+        {
+          handler: 'BlurInput',
+          label: L._('Choropleth breakpoints'),
+          helpText: L._('Comma separated list of numbers, including min and max values.'),
+        },
+      ],
+      [
+        'options.choropleth.mode',
+        {
+          handler: 'MultiChoice',
+          default: 'kmeans',
+          choices: Object.entries(this.MODES),
+          label: L._('Choropleth mode'),
+        },
+      ],
+    ]
+  },
+
+  renderLegend: function (container) {
+    const parent = L.DomUtil.create('ul', '', container)
+    let li, color, label
+
+    this.options.breaks.slice(0, -1).forEach((limit, index) => {
+      li = L.DomUtil.create('li', '', parent)
+      color = L.DomUtil.create('span', 'datalayer-color', li)
+      color.style.backgroundColor = this.options.colors[index]
+      label = L.DomUtil.create('span', '', li)
+      label.textContent = `${+this.options.breaks[index].toFixed(
+        1
+      )} - ${+this.options.breaks[index + 1].toFixed(1)}`
+    })
+  },
+})
+
 L.U.Layer.Heat = L.HeatLayer.extend({
   _type: 'Heat',
   includes: [L.U.Layer],
@@ -399,7 +587,7 @@ L.U.DataLayer = L.Evented.extend({
     if (visible) this.map.removeLayer(this.layer)
     const Class = L.U.Layer[this.options.type] || L.U.Layer.Default
     this.layer = new Class(this)
-    this.eachLayer((feature) => this.showFeature(feature))
+    this.eachLayer(this.showFeature)
     if (visible) this.show()
     this.propagateRemote()
   },
@@ -970,11 +1158,9 @@ L.U.DataLayer = L.Evented.extend({
       'options.fillOpacity',
     ]
 
-    shapeOptions = shapeOptions.concat(this.layer.getEditableOptions())
-
-    const redrawCallback = function (field) {
+    const redrawCallback = function (e) {
       this.hide()
-      this.layer.postUpdate(field)
+      this.layer.postUpdate(e)
       this.show()
     }
 
@@ -1123,9 +1309,22 @@ L.U.DataLayer = L.Evented.extend({
     this.map.ui.openPanel({ data: { html: container }, className: 'dark' })
   },
 
-  getOption: function (option) {
+  getOwnOption: function (option) {
     if (L.Util.usableOption(this.options, option)) return this.options[option]
-    else return this.map.getOption(option)
+  },
+
+  getOption: function (option, feature) {
+    if (this.layer && this.layer.getOption) {
+      const value = this.layer.getOption(option, feature)
+      if (typeof value !== 'undefined') return value
+    }
+    if (typeof this.getOwnOption(option) !== 'undefined') {
+      return this.getOwnOption(option)
+    } else if (this.layer && this.layer.defaults && this.layer.defaults[option]) {
+      return this.layer.defaults[option]
+    } else {
+      return this.map.getOption(option)
+    }
   },
 
   buildVersionsFieldset: function (container) {
diff --git a/umap/static/umap/map.css b/umap/static/umap/map.css
index 2f51dc01..483316e9 100644
--- a/umap/static/umap/map.css
+++ b/umap/static/umap/map.css
@@ -1087,6 +1087,17 @@ a.add-datalayer:hover,
     vertical-align: middle;
 }
 
+.datalayer-legend {
+    color: #555;
+    padding: 6px 8px;
+    box-shadow: 0 0 3px rgba(0,0,0,0.2);
+    border-radius: 1px;
+}
+.datalayer-legend ul {
+    list-style-type: none;
+    padding: 0;
+    margin: 0;
+}
 
 /* ********************************* */
 /*           Popup                   */
diff --git a/umap/static/umap/test/Choropleth.js b/umap/static/umap/test/Choropleth.js
new file mode 100644
index 00000000..f87e7cce
--- /dev/null
+++ b/umap/static/umap/test/Choropleth.js
@@ -0,0 +1,243 @@
+const POLYGONS = {
+  _umap_options: defaultDatalayerData(),
+  type: 'FeatureCollection',
+  features: [
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 1',
+        value: 45,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [0, 49],
+            [-2, 47],
+            [1, 46],
+            [3, 47],
+            [0, 49],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 2',
+        value: 87,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [0, 49],
+            [2, 50],
+            [6, 49],
+            [4, 47],
+            [0, 49],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 3',
+        value: 673,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [4, 47],
+            [6, 49],
+            [11, 47],
+            [9, 45],
+            [4, 47],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 4',
+        value: 674,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [2, 46],
+            [4, 47],
+            [8, 45],
+            [6, 43],
+            [2, 46],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 5',
+        value: 839,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [-2, 47],
+            [1, 46],
+            [0, 44],
+            [-4, 45],
+            [-2, 47],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 6',
+        value: 3829,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [1, 45],
+            [5, 43],
+            [4, 42],
+            [0, 44],
+            [1, 45],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 7',
+        value: 4900,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [9, 45],
+            [12, 47],
+            [15, 45],
+            [13, 43],
+            [9, 45],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 8',
+        value: 4988,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [7, 43],
+            [9, 45],
+            [12, 43],
+            [10, 42],
+            [7, 43],
+          ],
+        ],
+      },
+    },
+    {
+      type: 'Feature',
+      properties: {
+        name: 'number 9',
+        value: 9898,
+      },
+      geometry: {
+        type: 'Polygon',
+        coordinates: [
+          [
+            [4, 42],
+            [6, 43],
+            [9, 41],
+            [7, 40],
+            [4, 42],
+          ],
+        ],
+      },
+    },
+  ],
+}
+
+describe('L.U.Choropleth', function () {
+  let path = '/map/99/datalayer/edit/62/',
+    poly1,
+    poly4,
+    poly9
+
+  before(function () {
+    this.server = sinon.fakeServer.create()
+    this.server.respondWith(/\/datalayer\/62\/\?.*/, JSON.stringify(POLYGONS))
+    this.map = initMap({ umap_id: 99 })
+    this.datalayer = this.map.getDataLayerByUmapId(62)
+    this.server.respond()
+    this.datalayer.options.type = 'Choropleth'
+    this.datalayer.options.choropleth = {
+      property: 'value',
+    }
+    enableEdit()
+    this.datalayer.eachLayer(function (layer) {
+      if (layer.properties.name === 'number 1') {
+        poly1 = layer
+      } else if (layer.properties.name === 'number 4') {
+        poly4 = layer
+      } else if (layer.properties.name === 'number 9') {
+        poly9 = layer
+      }
+    })
+  })
+  after(function () {
+    this.server.restore()
+    //resetMap()
+  })
+
+  describe('#init()', function () {
+    it('datalayer should have 9 features', function () {
+      assert.equal(this.datalayer._index.length, 9)
+    })
+  })
+  describe('#compute()', function () {
+    it('choropleth should compute default colors', function () {
+      this.datalayer.resetLayer(true)
+      assert.deepEqual(
+        this.datalayer.layer.options.breaks,
+        [45, 673, 3829, 4900, 9898, 9898]
+      )
+      assert.equal(poly1._path.attributes.fill.value, '#eff3ff')
+      assert.equal(poly4._path.attributes.fill.value, '#bdd7e7')
+      assert.equal(poly9._path.attributes.fill.value, '#3182bd')
+    })
+    it('can change brewer scheme', function () {
+      this.datalayer.options.choropleth.brewer = 'Reds'
+      this.datalayer.resetLayer(true)
+      assert.equal(poly1._path.attributes.fill.value, '#fee5d9')
+      assert.equal(poly4._path.attributes.fill.value, '#fcae91')
+      assert.equal(poly9._path.attributes.fill.value, '#de2d26')
+    })
+    it('choropleth should allow to change steps', function () {
+      this.datalayer.options.choropleth.brewer = 'Blues'
+      this.datalayer.options.choropleth.classes = 6
+      this.datalayer.resetLayer(true)
+      assert.equal(poly1._path.attributes.fill.value, '#eff3ff')
+      assert.equal(poly4._path.attributes.fill.value, '#c6dbef')
+      assert.equal(poly9._path.attributes.fill.value, '#3182bd')
+    })
+  })
+})
diff --git a/umap/static/umap/test/index.html b/umap/static/umap/test/index.html
index 620d0274..e56ff9b5 100644
--- a/umap/static/umap/test/index.html
+++ b/umap/static/umap/test/index.html
@@ -25,6 +25,8 @@
     <script src="../vendors/dompurify/purify.js"></script>
     <script src="../vendors/togpx/togpx.js"></script>
     <script src="../vendors/tokml/tokml.js"></script>
+    <script src="../vendors/simple-statistics/simple-statistics.min.js"></script>
+    <script src="../vendors/colorbrewer/colorbrewer.js"></script>
     <script src="../js/umap.core.js"></script>
     <script src="../js/umap.autocomplete.js"></script>
     <script src="../js/umap.popup.js"></script>
@@ -82,6 +84,7 @@
     <script src="./Util.js"></script>
     <script src="./Controls.js"></script>
     <script src="./Permissions.js"></script>
+    <script src="./Choropleth.js"></script>
     <style type="text/css">
       #mocha {
         position: absolute;
diff --git a/umap/templates/umap/js.html b/umap/templates/umap/js.html
index e2da8669..11693494 100644
--- a/umap/templates/umap/js.html
+++ b/umap/templates/umap/js.html
@@ -24,6 +24,8 @@
   <script src="{{ STATIC_URL }}umap/vendors/tokml/tokml.js"></script>
   <script src="{{ STATIC_URL }}umap/vendors/locatecontrol/L.Control.Locate.js"></script>
   <script src="{{ STATIC_URL }}umap/vendors/dompurify/purify.js"></script>
+  <script src="{{ STATIC_URL }}umap/vendors/colorbrewer/colorbrewer.js"></script>
+  <script src="{{ STATIC_URL }}umap/vendors/simple-statistics/simple-statistics.min.js"></script>
 {% endcompress %}
 {% if locale %}<script src="{{ STATIC_URL }}umap/locale/{{ locale }}.js"></script>{% endif %}
 {% compress js %}
diff --git a/umap/tests/base.py b/umap/tests/base.py
index 1076275e..5aef9e76 100644
--- a/umap/tests/base.py
+++ b/umap/tests/base.py
@@ -107,12 +107,17 @@ class DataLayerFactory(factory.django.DjangoModelFactory):
 
     @classmethod
     def _adjust_kwargs(cls, **kwargs):
-        data = kwargs.pop("data", copy.deepcopy(DATALAYER_DATA))
-        kwargs["settings"]["name"] = kwargs["name"]
-        data["_umap_options"] = {
-            **DataLayerFactory.settings._defaults,
-            **kwargs["settings"],
-        }
+        if "data" in kwargs:
+            data = copy.deepcopy(kwargs.pop("data"))
+            if "settings" not in kwargs:
+                kwargs["settings"] = data.get("_umap_options", {})
+        else:
+            data = DATALAYER_DATA.copy()
+            data["_umap_options"] = {
+                **DataLayerFactory.settings._defaults,
+                **kwargs["settings"],
+            }
+        data["_umap_options"]["name"] = kwargs["name"]
         kwargs["geojson"] = ContentFile(json.dumps(data), "foo.json")
         return kwargs
 
diff --git a/umap/tests/fixtures/choropleth_region_chomage.geojson b/umap/tests/fixtures/choropleth_region_chomage.geojson
new file mode 100644
index 00000000..0cd46b93
--- /dev/null
+++ b/umap/tests/fixtures/choropleth_region_chomage.geojson
@@ -0,0 +1,15 @@
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+],"_umap_options": {"displayOnLoad": true,"browsable": true,"name": "Taux de chômage","labelKey": "{nom} ({taux})","type": "Choropleth","choropleth": {"property": "taux"}}}
diff --git a/umap/tests/integration/test_map.py b/umap/tests/integration/test_map.py
index fdc8dc79..a40e55d6 100644
--- a/umap/tests/integration/test_map.py
+++ b/umap/tests/integration/test_map.py
@@ -1,3 +1,6 @@
+import json
+from pathlib import Path
+
 import pytest
 from playwright.sync_api import expect
 
@@ -55,3 +58,25 @@ def test_can_hide_datalayer_from_caption(map, live_server, datalayer, page):
     expect(found).to_be_visible()
     hidden = page.locator("#umap-ui-container").get_by_text(other.name)
     expect(hidden).to_be_hidden()
+
+
+def test_basic_choropleth_map(map, live_server, page):
+    path = Path(__file__).parent.parent / "fixtures/choropleth_region_chomage.geojson"
+    data = json.loads(path.read_text())
+    DataLayerFactory(data=data, map=map)
+    page.goto(f"{live_server.url}{map.get_absolute_url()}")
+    # Hauts-de-France
+    paths = page.locator("path[fill='#08519c']")
+    expect(paths).to_have_count(1)
+    # Occitanie
+    paths = page.locator("path[fill='#3182bd']")
+    expect(paths).to_have_count(1)
+    # Grand-Est, PACA
+    paths = page.locator("path[fill='#6baed6']")
+    expect(paths).to_have_count(2)
+    # Bourgogne-Franche-Comté, Centre-Val-de-Loire, IdF, Normandie, Corse, Nouvelle-Aquitaine
+    paths = page.locator("path[fill='#bdd7e7']")
+    expect(paths).to_have_count(6)
+    # Bretagne, Pays de la Loire, AURA
+    paths = page.locator("path[fill='#eff3ff']")
+    expect(paths).to_have_count(3)