diff --git a/package-lock.json b/package-lock.json
index 24f6e17..328579b 100644
--- a/package-lock.json
+++ b/package-lock.json
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-          "dev": true,
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-          "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
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-          "dev": true,
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-          "dev": true
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-        "yargs": {
-          "version": "12.0.5",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
-          "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
-          "dev": true,
-          "requires": {
-            "cliui": "^4.0.0",
-            "decamelize": "^1.2.0",
-            "find-up": "^3.0.0",
-            "get-caller-file": "^1.0.1",
-            "os-locale": "^3.0.0",
-            "require-directory": "^2.1.1",
-            "require-main-filename": "^1.0.1",
-            "set-blocking": "^2.0.0",
-            "string-width": "^2.0.0",
-            "which-module": "^2.0.0",
-            "y18n": "^3.2.1 || ^4.0.0",
-            "yargs-parser": "^11.1.1"
-          }
-        },
-        "yargs-parser": {
-          "version": "11.1.1",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
-          "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
-          "dev": true,
-          "requires": {
-            "camelcase": "^5.0.0",
-            "decamelize": "^1.2.0"
-          }
-        }
-      }
-    },
-    "yarn-install": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/yarn-install/-/yarn-install-1.0.0.tgz",
-      "integrity": "sha1-V/RQULgu/VcYKzlzxUqgXLXSUjA=",
-      "dev": true,
-      "requires": {
-        "cac": "^3.0.3",
-        "chalk": "^1.1.3",
-        "cross-spawn": "^4.0.2"
-      },
-      "dependencies": {
-        "cross-spawn": {
-          "version": "4.0.2",
-          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-4.0.2.tgz",
-          "integrity": "sha1-e5JHYhwjrf3ThWAEqCPL45dCTUE=",
-          "dev": true,
-          "requires": {
-            "lru-cache": "^4.0.1",
-            "which": "^1.2.9"
-          }
-        }
-      }
-    },
     "yauzl": {
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
@@ -17472,6 +16078,18 @@
         "buffer-crc32": "~0.2.3",
         "fd-slicer": "~1.1.0"
       }
+    },
+    "zip-stream": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-1.2.0.tgz",
+      "integrity": "sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=",
+      "dev": true,
+      "requires": {
+        "archiver-utils": "^1.3.0",
+        "compress-commons": "^1.2.0",
+        "lodash": "^4.8.0",
+        "readable-stream": "^2.0.0"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index fea81c7..4c55e58 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "lodash.get": "^4.4.2",
     "lodash.isequal": "^4.5.0",
     "lodash.throttle": "^4.1.1",
-    "mapbox-gl": "^0.53.1",
+    "mapbox-gl": "^1.1.0-beta.1",
     "mapbox-gl-inspect": "^1.3.1",
     "maputnik-design": "github:maputnik/design",
     "ol": "^6.0.0-beta.8",
diff --git a/src/components/fields/ColorField.jsx b/src/components/fields/ColorField.jsx
index 9a40090..f1f6077 100644
--- a/src/components/fields/ColorField.jsx
+++ b/src/components/fields/ColorField.jsx
@@ -57,6 +57,10 @@ class ColorField extends React.Component {
     }
   }
 
+  onChange (v) {
+    this.props.onChange(v === "" ? undefined : v);
+  }
+
   render() {
     const offset = this.calcPickerOffset()
     var currentColor = this.color.object()
@@ -110,7 +114,7 @@ class ColorField extends React.Component {
         name={this.props.name}
         placeholder={this.props.default}
         value={this.props.value ? this.props.value : ""}
-        onChange={(e) => this.props.onChange(e.target.value)}
+        onChange={(e) => this.onChange(e.target.value)}
       />
     </div>
   }
diff --git a/src/components/inputs/AutocompleteInput.jsx b/src/components/inputs/AutocompleteInput.jsx
index 8f4ed3e..1234684 100644
--- a/src/components/inputs/AutocompleteInput.jsx
+++ b/src/components/inputs/AutocompleteInput.jsx
@@ -44,6 +44,10 @@ class AutocompleteInput extends React.Component {
     this.calcMaxHeight();
   }
 
+  onChange (v) {
+    this.props.onChange(v === "" ? undefined : v);
+  }
+
   render() {
     return <div
       ref={(el) => {
@@ -68,8 +72,8 @@ class AutocompleteInput extends React.Component {
         value={this.props.value}
         items={this.props.options}
         getItemValue={(item) => item[0]}
-        onSelect={v => this.props.onChange(v)}
-        onChange={(e, v) => this.props.onChange(v)}
+        onSelect={v => this.onChange(v)}
+        onChange={(e, v) => this.onChange(v)}
         shouldItemRender={(item, value="") => {
           if (typeof(value) === "string") {
             return item[0].toLowerCase().indexOf(value.toLowerCase()) > -1
diff --git a/src/components/inputs/FontInput.jsx b/src/components/inputs/FontInput.jsx
index 8c52083..66983d3 100644
--- a/src/components/inputs/FontInput.jsx
+++ b/src/components/inputs/FontInput.jsx
@@ -16,13 +16,25 @@ class FontInput extends React.Component {
   }
 
   get values() {
-   return this.props.value || this.props.default.slice(1) || []
+    const out = this.props.value || this.props.default.slice(1) || [""];
+
+    // Always put a "" in the last field to you can keep adding entries
+    if (out[out.length-1] !== ""){
+      return out.concat("");
+    }
+    else {
+      return out;
+    }
   }
 
   changeFont(idx, newValue) {
     const changedValues = this.values.slice(0)
     changedValues[idx] = newValue
-    this.props.onChange(changedValues)
+    const filteredValues = changedValues
+      .filter(v => v !== undefined)
+      .filter(v => v !== "")
+
+    this.props.onChange(filteredValues);
   }
 
   render() {
diff --git a/src/components/inputs/InputBlock.jsx b/src/components/inputs/InputBlock.jsx
index 9d28d8e..117ba3e 100644
--- a/src/components/inputs/InputBlock.jsx
+++ b/src/components/inputs/InputBlock.jsx
@@ -20,7 +20,7 @@ class InputBlock extends React.Component {
 
   onChange(e) {
     const value = e.target.value
-    return this.props.onChange(value === "" ? null: value)
+    return this.props.onChange(value === "" ? undefined : value)
   }
 
   render() {
diff --git a/src/libs/layer.js b/src/libs/layer.js
index 8d913ba..8a9cca3 100644
--- a/src/libs/layer.js
+++ b/src/libs/layer.js
@@ -31,7 +31,11 @@ export function changeProperty(layer, group, property, newValue) {
   if(newValue === undefined) {
     if(group) {
       const newLayer = {
-        ...layer
+        ...layer,
+        // Change object so the diff works in ./src/components/map/MapboxGlMap.jsx
+        [group]: {
+          ...layer[group]
+        }
       };
       delete newLayer[group][property];