diff --git a/umap/models.py b/umap/models.py
index 4bff5f75..857a01f5 100644
--- a/umap/models.py
+++ b/umap/models.py
@@ -9,6 +9,7 @@ from django.core.files.base import File
 from django.core.signing import Signer
 from django.template.defaultfilters import slugify
 from django.urls import reverse
+from django.utils.functional import classproperty
 from django.utils.translation import gettext_lazy as _
 
 from .managers import PublicManager
@@ -217,7 +218,7 @@ class Map(NamedModel):
                 "umap_id": self.pk,
                 "onLoadPanel": "none",
                 "captionBar": False,
-                "default_iconUrl": "%sumap/img/marker.svg" % settings.STATIC_URL,
+                "schema": self.schema,
                 "slideshow": {},
             }
         )
@@ -328,6 +329,17 @@ class Map(NamedModel):
             datalayer.clone(map_inst=new)
         return new
 
+    @classproperty
+    def schema(self):
+        schema = settings.UMAP_SCHEMA
+        schema.setdefault(
+            "iconUrl",
+            {
+                "default": "%sumap/img/marker.svg" % settings.STATIC_URL,
+            },
+        )
+        return schema
+
 
 class Pictogram(NamedModel):
     """
diff --git a/umap/settings/base.py b/umap/settings/base.py
index d29d08eb..6766ea42 100644
--- a/umap/settings/base.py
+++ b/umap/settings/base.py
@@ -256,6 +256,7 @@ UMAP_DEFAULT_SHARE_STATUS = None
 UMAP_DEFAULT_EDIT_STATUS = None
 UMAP_DEFAULT_FEATURES_HAVE_OWNERS = False
 UMAP_HOME_FEED = "latest"
+UMAP_SCHEMA = {}
 
 UMAP_READONLY = env("UMAP_READONLY", default=False)
 UMAP_GZIP = True
diff --git a/umap/static/umap/js/modules/browser.js b/umap/static/umap/js/modules/browser.js
index c3370acf..80c7f358 100644
--- a/umap/static/umap/js/modules/browser.js
+++ b/umap/static/umap/js/modules/browser.js
@@ -30,7 +30,7 @@ export default class Browser {
     title.textContent = feature.getDisplayName() || '—'
     const bgcolor = feature.getDynamicOption('color')
     colorBox.style.backgroundColor = bgcolor
-    if (symbol && symbol !== this.map.options.default_iconUrl) {
+    if (symbol && symbol !== U.SCHEMA.iconUrl.default) {
       const icon = U.Icon.makeIconElement(symbol, colorBox)
       U.Icon.setIconContrast(icon, colorBox, symbol, bgcolor)
     }
@@ -131,7 +131,7 @@ export default class Browser {
       'h3',
       'umap-browse-title',
       container,
-      this.map.options.name
+      this.map.getOption('name')
     )
 
     const formContainer = DomUtil.create('div', '', container)
diff --git a/umap/static/umap/js/modules/schema.js b/umap/static/umap/js/modules/schema.js
index 39b26864..13c25b70 100644
--- a/umap/static/umap/js/modules/schema.js
+++ b/umap/static/umap/js/modules/schema.js
@@ -11,18 +11,22 @@ export const SCHEMA = {
   scaleControl: {
     type: Boolean,
     label: translate('Do you want to display the scale control?'),
+    default: true,
   },
   moreControl: {
     type: Boolean,
     label: translate('Do you want to display the «more» control?'),
+    default: true,
   },
   miniMap: {
     type: Boolean,
     label: translate('Do you want to display a minimap?'),
+    default: false,
   },
   displayPopupFooter: {
     type: Boolean,
     label: translate('Do you want to display popup footer?'),
+    default: false,
   },
   onLoadPanel: {
     type: String,
@@ -74,6 +78,7 @@ export const SCHEMA = {
     label: translate('color'),
     helpEntries: 'colorValue',
     inheritable: true,
+    default: 'DarkBlue',
   },
   iconClass: {
     type: String,
@@ -85,6 +90,7 @@ export const SCHEMA = {
       ['Drop', translate('Drop')],
       ['Ball', translate('Ball')],
     ],
+    default: 'Default',
   },
   iconUrl: {
     type: String,
@@ -101,6 +107,7 @@ export const SCHEMA = {
     label: translate('Simplify'),
     helpEntries: 'smoothFactor',
     inheritable: true,
+    default: 1.0,
   },
   iconOpacity: {
     type: Number,
@@ -109,6 +116,7 @@ export const SCHEMA = {
     step: 0.1,
     label: translate('icon opacity'),
     inheritable: true,
+    default: 1,
   },
   opacity: {
     type: Number,
@@ -117,6 +125,7 @@ export const SCHEMA = {
     step: 0.1,
     label: translate('opacity'),
     inheritable: true,
+    default: 0.5,
   },
   weight: {
     type: Number,
@@ -125,12 +134,14 @@ export const SCHEMA = {
     step: 1,
     label: translate('weight'),
     inheritable: true,
+    default: 3,
   },
   fill: {
     type: Boolean,
     label: translate('fill'),
     helpEntries: 'fill',
     inheritable: true,
+    default: true,
   },
   fillColor: {
     type: String,
@@ -146,6 +157,7 @@ export const SCHEMA = {
     step: 0.1,
     label: translate('fill opacity'),
     inheritable: true,
+    default: 0.3,
   },
   dashArray: {
     type: String,
@@ -183,6 +195,7 @@ export const SCHEMA = {
     helpEntries: ['dynamicProperties', 'textFormatting'],
     placeholder: '# {name}',
     inheritable: true,
+    default: '# {name}\n{description}',
   },
   zoomTo: {
     type: Number,
@@ -194,10 +207,12 @@ export const SCHEMA = {
   captionBar: {
     type: Boolean,
     label: translate('Do you want to display a caption bar?'),
+    default: false,
   },
   captionMenus: {
     type: Boolean,
     label: translate('Do you want to display caption menus?'),
+    default: true,
   },
   slideshow: {
     type: Object,
@@ -239,6 +254,7 @@ export const SCHEMA = {
       ['top', translate('On the top')],
       ['bottom', translate('On the bottom')],
     ],
+    default: 'auto',
   },
   labelInteractive: {
     type: Boolean,
@@ -274,22 +290,26 @@ export const SCHEMA = {
   permanentCreditBackground: {
     type: Boolean,
     label: translate('Permanent credits background'),
+    default: true,
   },
   zoomControl: {
     type: Boolean,
     nullable: true,
     label: translate('Display the zoom control'),
+    default: true,
   },
   datalayersControl: {
     type: Boolean,
     nullable: true,
     handler: 'DataLayersControl',
     label: translate('Display the data layers control'),
+    default: true,
   },
   searchControl: {
     type: Boolean,
     nullable: true,
     label: translate('Display the search control'),
+    default: true,
   },
   locateControl: {
     type: Boolean,
@@ -300,16 +320,19 @@ export const SCHEMA = {
     type: Boolean,
     nullable: true,
     label: translate('Display the fullscreen control'),
+    default: true,
   },
   editinosmControl: {
     type: Boolean,
     nullable: true,
     label: translate('Display the control to open OpenStreetMap editor'),
+    default: null,
   },
   embedControl: {
     type: Boolean,
     nullable: true,
     label: translate('Display the embed control'),
+    default: true,
   },
   measureControl: {
     type: Boolean,
@@ -328,12 +351,14 @@ export const SCHEMA = {
   },
   easing: {
     type: Boolean,
+    default: false,
   },
   interactive: {
     type: Boolean,
     label: translate('Allow interactions'),
     helpEntries: 'interactive',
     inheritable: true,
+    default: true,
   },
   fromZoom: {
     type: Number,
@@ -350,6 +375,7 @@ export const SCHEMA = {
     label: translate('stroke'),
     helpEntries: 'stroke',
     inheritable: true,
+    default: true,
   },
   outlink: {
     label: translate('Link to…'),
diff --git a/umap/static/umap/js/umap.controls.js b/umap/static/umap/js/umap.controls.js
index b76daccc..cfbd78bf 100644
--- a/umap/static/umap/js/umap.controls.js
+++ b/umap/static/umap/js/umap.controls.js
@@ -1184,25 +1184,22 @@ U.AttributionControl = L.Control.Attribution.extend({
       this._container,
       credits
     )
-    if (this._map.options.shortCredit) {
-      L.DomUtil.add(
-        'span',
-        '',
-        container,
-        ` — ${L.Util.toHTML(this._map.options.shortCredit)}`
-      )
+    const shortCredit = this._map.getOption('shortCredit'),
+      captionMenus = this._map.getOption('captionMenus')
+    if (shortCredit) {
+      L.DomUtil.add('span', '', container, ` — ${L.Util.toHTML(shortCredit)}`)
     }
-    if (this._map.options.captionMenus) {
+    if (captionMenus) {
       const link = L.DomUtil.add('a', '', container, ` — ${L._('About')}`)
       L.DomEvent.on(link, 'click', L.DomEvent.stop)
         .on(link, 'click', this._map.displayCaption, this._map)
         .on(link, 'dblclick', L.DomEvent.stop)
     }
-    if (window.top === window.self && this._map.options.captionMenus) {
+    if (window.top === window.self && captionMenus) {
       // We are not in iframe mode
       L.DomUtil.createLink('', container, ` — ${L._('Home')}`, '/')
     }
-    if (this._map.options.captionMenus) {
+    if (captionMenus) {
       L.DomUtil.createLink(
         '',
         container,
diff --git a/umap/static/umap/js/umap.features.js b/umap/static/umap/js/umap.features.js
index 57caecce..16ea166d 100644
--- a/umap/static/umap/js/umap.features.js
+++ b/umap/static/umap/js/umap.features.js
@@ -53,7 +53,7 @@ U.FeatureMixin = {
   },
 
   getSlug: function () {
-    return this.properties[this.map.options.slugKey || 'name'] || ''
+    return this.properties[this.map.getOption('slugKey') || 'name'] || ''
   },
 
   getPermalink: function () {
@@ -209,7 +209,7 @@ U.FeatureMixin = {
     if (L.Browser.ielt9) return false
     if (this.datalayer.isRemoteLayer() && this.datalayer.options.remoteData.dynamic)
       return false
-    return this.map.options.displayPopupFooter
+    return this.map.getOption('displayPopupFooter')
   },
 
   getPopupClass: function () {
@@ -309,7 +309,7 @@ U.FeatureMixin = {
 
   zoomTo: function (e) {
     e = e || {}
-    const easing = e.easing !== undefined ? e.easing : this.map.options.easing
+    const easing = e.easing !== undefined ? e.easing : this.map.getOption('easing')
     if (easing) {
       this.map.flyTo(this.getCenter(), this.getBestZoom())
     } else {
@@ -975,7 +975,7 @@ U.PathMixin = {
   zoomTo: function (e) {
     // Use bounds instead of centroid for paths.
     e = e || {}
-    const easing = e.easing !== undefined ? e.easing : this.map.options.easing
+    const easing = e.easing !== undefined ? e.easing : this.map.getOption('easing')
     if (easing) {
       this.map.flyToBounds(this.getBounds(), this.getBestZoom())
     } else {
diff --git a/umap/static/umap/js/umap.forms.js b/umap/static/umap/js/umap.forms.js
index 958329d3..919711eb 100644
--- a/umap/static/umap/js/umap.forms.js
+++ b/umap/static/umap/js/umap.forms.js
@@ -653,7 +653,7 @@ L.FormBuilder.IconUrl = L.FormBuilder.BlurInput.extend({
   },
 
   isDefault: function () {
-    return !this.value() || this.value() === U.DEFAULT_ICON_URL
+    return !this.value() || this.value() === U.SCHEMA.iconUrl.default
   },
 
   addGrid: function (onSearch) {
diff --git a/umap/static/umap/js/umap.icon.js b/umap/static/umap/js/umap.icon.js
index 5a0189b3..7eae6575 100644
--- a/umap/static/umap/js/umap.icon.js
+++ b/umap/static/umap/js/umap.icon.js
@@ -19,7 +19,7 @@ U.Icon = L.DivIcon.extend({
 
   _setRecent: function (url) {
     if (L.Util.hasVar(url)) return
-    if (url === U.DEFAULT_ICON_URL) return
+    if (url === U.SCHEMA.iconUrl.default) return
     if (U.Icon.RECENT.indexOf(url) === -1) {
       U.Icon.RECENT.push(url)
     }
@@ -236,7 +236,7 @@ U.Icon.setIconContrast = function (icon, parent, src, bgcolor) {
   if (L.DomUtil.contrastedColor(parent, bgcolor)) {
     // Decide whether to switch svg to white or not, but do it
     // only for internal SVG, as invert could do weird things
-    if (L.Util.isPath(src) && src.endsWith('.svg') && src !== U.DEFAULT_ICON_URL) {
+    if (L.Util.isPath(src) && src.endsWith('.svg') && src !== U.SCHEMA.iconUrl.default) {
       // Must be called after icon container is added to the DOM
       // An image
       icon.style.filter = 'invert(1)'
diff --git a/umap/static/umap/js/umap.js b/umap/static/umap/js/umap.js
index 2fe72afb..b4df88cf 100644
--- a/umap/static/umap/js/umap.js
+++ b/umap/static/umap/js/umap.js
@@ -2,33 +2,12 @@ L.Map.mergeOptions({
   overlay: null,
   datalayers: [],
   hash: true,
-  default_color: 'DarkBlue',
-  default_smoothFactor: 1.0,
-  default_opacity: 0.5,
-  default_fillOpacity: 0.3,
-  default_stroke: true,
-  default_fill: true,
-  default_weight: 3,
-  default_iconOpacity: 1,
-  default_iconClass: 'Default',
-  default_popupContentTemplate: '# {name}\n{description}',
-  default_interactive: true,
-  default_labelDirection: 'auto',
   maxZoomLimit: 24,
   attributionControl: false,
   editMode: 'advanced',
-  embedControl: true,
-  zoomControl: true,
-  datalayersControl: true,
-  searchControl: true,
-  editInOSMControl: false,
-  editInOSMControlOptions: false,
-  scaleControl: true,
   noControl: false, // Do not render any control.
-  miniMap: false,
   name: '',
   description: '',
-  displayPopupFooter: false,
   // When a TileLayer is in TMS mode, it needs -y instead of y.
   // This is usually handled by the TileLayer instance itself, but
   // we cannot rely on this because of the y is overriden by Leaflet
@@ -44,14 +23,9 @@ L.Map.mergeOptions({
   importPresets: [
     // {url: 'http://localhost:8019/en/datalayer/1502/', label: 'Simplified World Countries', format: 'geojson'}
   ],
-  moreControl: true,
-  captionBar: false,
-  captionMenus: true,
   slideshow: {},
   clickable: true,
-  easing: false,
   permissions: {},
-  permanentCreditBackground: true,
   featuresHaveOwner: false,
 })
 
@@ -75,7 +49,8 @@ U.Map = L.Map.extend({
     geojson.properties.fullscreenControl = false
 
     L.Map.prototype.initialize.call(this, el, geojson.properties)
-    U.DEFAULT_ICON_URL = this.options.default_iconUrl
+
+    if (geojson.properties.schema) this.overrideSchema(geojson.properties.schema)
 
     // After calling parent initialize, as we are doing initCenter our-selves
     if (geojson.geometry) this.options.center = this.latLng(geojson.geometry)
@@ -292,6 +267,12 @@ U.Map = L.Map.extend({
     }
   },
 
+  overrideSchema: function (schema) {
+   for (const [key, extra] of Object.entries(schema)) {
+     U.SCHEMA[key] = L.extend({}, U.SCHEMA[key], extra)
+   }
+  },
+
   initControls: function () {
     this.helpMenuActions = {}
     this._controls = {}
@@ -333,7 +314,7 @@ U.Map = L.Map.extend({
       title: { false: L._('View Fullscreen'), true: L._('Exit Fullscreen') },
     })
     this._controls.search = new U.SearchControl()
-    this._controls.embed = new L.Control.Embed(this, this.options.embedOptions)
+    this._controls.embed = new L.Control.Embed(this)
     this._controls.tilelayersChooser = new U.TileLayerChooser(this)
     if (this.options.user) this._controls.star = new U.StarControl(this)
     this._controls.editinosm = new L.Control.EditInOSM({
@@ -399,7 +380,7 @@ U.Map = L.Map.extend({
     let name, status, control
     for (let i = 0; i < this.HIDDABLE_CONTROLS.length; i++) {
       name = this.HIDDABLE_CONTROLS[i]
-      status = this.options[`${name}Control`]
+      status = this.getOption(`${name}Control`)
       if (status === false) continue
       control = this._controls[name]
       if (!control) continue
@@ -408,9 +389,9 @@ U.Map = L.Map.extend({
         L.DomUtil.addClass(control._container, 'display-on-more')
       else L.DomUtil.removeClass(control._container, 'display-on-more')
     }
-    if (this.options.permanentCredit) this._controls.permanentCredit.addTo(this)
-    if (this.options.moreControl) this._controls.more.addTo(this)
-    if (this.options.scaleControl) this._controls.scale.addTo(this)
+    if (this.getOption('permanentCredit')) this._controls.permanentCredit.addTo(this)
+    if (this.getOption('moreControl')) this._controls.more.addTo(this)
+    if (this.getOption('scaleControl')) this._controls.scale.addTo(this)
   },
 
   initDataLayers: async function (datalayers) {
@@ -760,7 +741,7 @@ U.Map = L.Map.extend({
   },
 
   getDefaultOption: function (option) {
-    return this.options[`default_${option}`]
+    return U.SCHEMA[option] && U.SCHEMA[option].default
   },
 
   getOption: function (option) {
@@ -1607,7 +1588,7 @@ U.Map = L.Map.extend({
       name = L.DomUtil.create('h3', '', container)
     L.DomEvent.disableClickPropagation(container)
     this.permissions.addOwnerLink('span', container)
-    if (this.options.captionMenus) {
+    if (this.getOption('captionMenus')) {
       L.DomUtil.createButton(
         'umap-about-link flat',
         container,
diff --git a/umap/static/umap/js/umap.share.js b/umap/static/umap/js/umap.share.js
index 167f73d1..ad7c7b14 100644
--- a/umap/static/umap/js/umap.share.js
+++ b/umap/static/umap/js/umap.share.js
@@ -215,7 +215,7 @@ U.IframeExporter = L.Evented.extend({
     this.map = map
     this.baseUrl = L.Util.getBaseUrl()
     // Use map default, not generic default
-    this.queryString.onLoadPanel = this.map.options.onLoadPanel
+    this.queryString.onLoadPanel = this.map.getOption('onLoadPanel')
   },
 
   getMap: function () {
diff --git a/umap/views.py b/umap/views.py
index 8bbc936b..fcdcd1b5 100644
--- a/umap/views.py
+++ b/umap/views.py
@@ -488,7 +488,7 @@ class MapDetailMixin:
             "urls": _urls_for_js(),
             "tilelayers": TileLayer.get_list(),
             "editMode": self.edit_mode,
-            "default_iconUrl": "%sumap/img/marker.svg" % settings.STATIC_URL,  # noqa
+            "schema": Map.schema,
             "umap_id": self.get_umap_id(),
             "starred": self.is_starred(),
             "licences": dict((l.name, l.json) for l in Licence.objects.all()),