diff --git a/package-lock.json b/package-lock.json
index 053c640..35d5d07 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "BSD-3",
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-        "@shoelace-style/shoelace": "2.18.0",
+        "@shoelace-style/shoelace": "2.19.0",
         "@types/geojson": "^7946.0.14"
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@@ -32,7 +32,8 @@
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-        "vite": "5.4.11"
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@@ -228,14 +229,16 @@
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+      "license": "MIT",
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+      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.6.12.tgz",
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@@ -244,7 +247,8 @@
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+      "license": "MIT"
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@@ -403,9 +407,10 @@
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+      "resolved": "https://registry.npmjs.org/@lit/react/-/react-1.0.6.tgz",
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@@ -644,149 +649,6 @@
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@@ -813,45 +675,6 @@
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-        "@shoelace-style/localize": "^3.1.2",
-        "composed-offset-position": "^0.0.4",
-        "lit": "^3.0.0",
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+      "resolved": "https://registry.npmjs.org/@shoelace-style/shoelace/-/shoelace-2.19.0.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "@ctrl/tinycolor": "^4.1.0",
+        "@floating-ui/dom": "^1.6.12",
+        "@lit/react": "^1.0.6",
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+        "composed-offset-position": "^0.0.6",
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@@ -1059,15 +883,17 @@
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-      "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.10.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.16.tgz",
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@@ -1420,6 +1246,20 @@
         "url": "https://github.com/chalk/ansi-styles?sponsor=1"
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+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
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+      "license": "ISC",
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+        "picomatch": "^2.0.4"
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+      "license": "MIT",
+      "engines": {
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+      },
+      "funding": {
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@@ -1512,6 +1365,44 @@
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+      "peerDependencies": {
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       "os": [
         "darwin"
@@ -2209,6 +2105,19 @@
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "dev": true
     },
+    "node_modules/is-binary-path": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
+      "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "binary-extensions": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/is-core-module": {
       "version": "2.13.1",
       "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.13.1.tgz",
@@ -2557,6 +2466,16 @@
       "integrity": "sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==",
       "dev": true
     },
+    "node_modules/normalize-path": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
+      "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/nosleep.js": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/nosleep.js/-/nosleep.js-0.12.0.tgz",
@@ -2828,6 +2747,19 @@
         "util-deprecate": "~1.0.1"
       }
     },
+    "node_modules/readdirp": {
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
+      "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "picomatch": "^2.2.1"
+      },
+      "engines": {
+        "node": ">=8.10.0"
+      }
+    },
     "node_modules/require-from-string": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
@@ -3279,6 +3211,63 @@
         }
       }
     },
+    "node_modules/vite-plugin-static-copy": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/vite-plugin-static-copy/-/vite-plugin-static-copy-2.0.0.tgz",
+      "integrity": "sha512-b/quFjTUa/RY9t3geIyeeT2GtWEoRI0GawYFFjys5iMLGgVP638NTGu0RoMjwmi8MoZZ3BQw4OQvb1GpVcXZDA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "chokidar": "^3.5.3",
+        "fast-glob": "^3.2.11",
+        "fs-extra": "^11.1.0",
+        "picocolors": "^1.0.0"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "peerDependencies": {
+        "vite": "^5.0.0"
+      }
+    },
+    "node_modules/vite-plugin-static-copy/node_modules/fs-extra": {
+      "version": "11.2.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.2.0.tgz",
+      "integrity": "sha512-PmDi3uwK5nFuXh7XDTlVnS17xJS7vW36is2+w3xcv8SVxiB4NyATf4ctkVY5bkSjX0Y4nbvZCq1/EjtEyr9ktw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "graceful-fs": "^4.2.0",
+        "jsonfile": "^6.0.1",
+        "universalify": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=14.14"
+      }
+    },
+    "node_modules/vite-plugin-static-copy/node_modules/jsonfile": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.1.0.tgz",
+      "integrity": "sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "universalify": "^2.0.0"
+      },
+      "optionalDependencies": {
+        "graceful-fs": "^4.1.6"
+      }
+    },
+    "node_modules/vite-plugin-static-copy/node_modules/universalify": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.1.tgz",
+      "integrity": "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 10.0.0"
+      }
+    },
     "node_modules/web-ifc": {
       "version": "0.0.57",
       "resolved": "https://registry.npmjs.org/web-ifc/-/web-ifc-0.0.57.tgz",
diff --git a/package.json b/package.json
index b347ae0..9d716f3 100644
--- a/package.json
+++ b/package.json
@@ -42,10 +42,11 @@
     "prettier": "3.3.3",
     "typescript": "5.6.3",
     "typescript-eslint": "8.15.0",
-    "vite": "5.4.11"
+    "vite": "5.4.11",
+    "vite-plugin-static-copy": "2.0.0"
   },
   "dependencies": {
-    "@shoelace-style/shoelace": "2.18.0",
+    "@shoelace-style/shoelace": "2.19.0",
     "@types/geojson": "^7946.0.14"
   }
 }
diff --git a/src/apps/custom/index.ts b/src/apps/custom/index.ts
index 25f1eb0..9f563e1 100644
--- a/src/apps/custom/index.ts
+++ b/src/apps/custom/index.ts
@@ -27,7 +27,7 @@ export class NgvAppCustom extends ABaseApp<CustomConfig> {
       return r;
     }
     return html`
-      <ngv-structure-app .config=${this.config}>
+      <ngv-structure-app exportparts="language-chooser" .config=${this.config}>
         <ngv-main-custom .config=${this.config?.app}></ngv-main-custom>
       </ngv-structure-app>
     `;
diff --git a/src/apps/illumination/index.html b/src/apps/illumination/index.html
index 08cbd0d..9720bed 100644
--- a/src/apps/illumination/index.html
+++ b/src/apps/illumination/index.html
@@ -6,22 +6,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Revolutionary illumination / solar app</title>
     <!-- <link rel="stylesheet" href="./src/index.css" /> -->
-    <script type="module" src="./index.ts"></script>
 
-    <style>
-      /* FIXME: move to default style */
-      html {
-        box-sizing: border-box;
-      }
-      *,
-      *::before,
-      *::after {
-        box-sizing: inherit;
-      }
-      body {
-        margin: 0;
-      }
-    </style>
+    <script type="module" src="./index.ts"></script>
   </head>
   <body>
     <noscript>Enable JS!</noscript>
diff --git a/src/apps/illumination/index.ts b/src/apps/illumination/index.ts
index 8da1e9f..7d37d9e 100644
--- a/src/apps/illumination/index.ts
+++ b/src/apps/illumination/index.ts
@@ -33,10 +33,11 @@ export class NgvAppIllumination extends ABaseApp<IIlluminationConfig> {
       return r;
     }
     return html`
-      <ngv-structure-app .config=${this.config}>
+      <ngv-structure-app exportparts="language-chooser" .config=${this.config}>
         <ngv-menu-illumination
           .date=${this.initialDate}
           slot="menu"
+          part="menu"
           @change=${(evt: CustomEvent<MenuIlluminationChangeDetail>) => {
             this.date = evt.detail.date;
           }}
diff --git a/src/apps/permits/index.ts b/src/apps/permits/index.ts
index f925f43..9752676 100644
--- a/src/apps/permits/index.ts
+++ b/src/apps/permits/index.ts
@@ -44,11 +44,8 @@ export class NgvAppPermits extends ABaseApp<IPermitsConfig> {
       return r;
     }
     return html`
-      <ngv-structure-app .config=${this.config}>
-        <div
-          slot="menu"
-          style="display: flex; flex-direction: column; row-gap: 10px;"
-        >
+      <ngv-structure-app exportparts="language-chooser" .config=${this.config}>
+        <div part="menu" slot="menu">
           ${this.viewer
             ? html`
                 <ngv-plugin-cesium-model-interact
diff --git a/src/plugins/cesium/ngv-plugin-cesium-widget.ts b/src/plugins/cesium/ngv-plugin-cesium-widget.ts
index 20ca80d..8102984 100644
--- a/src/plugins/cesium/ngv-plugin-cesium-widget.ts
+++ b/src/plugins/cesium/ngv-plugin-cesium-widget.ts
@@ -30,13 +30,17 @@ export class NgvPluginCesiumWidget extends LitElement {
   static styles = [
     unsafeCSS(style),
     css`
+      :host {
+        display: block;
+      }
+
       #globe {
         width: 100%;
         height: 100%;
       }
 
-      .cesium-widget canvas {
-        position: absolute;
+      .cesium-widget, .cesium-widget-credits {
+        position: initial;
       }
 
       .cesium-credit-logoContainer {
diff --git a/src/structure/index.css b/src/structure/index.css
new file mode 100644
index 0000000..add331e
--- /dev/null
+++ b/src/structure/index.css
@@ -0,0 +1,40 @@
+@import url('@shoelace-style/shoelace/dist/themes/light.css');
+
+html {
+  box-sizing: border-box;
+  padding: 0;
+  margin: 0;
+}
+
+body {
+  font-family: var(--sl-font-sans);
+  font-size: var(--sl-font-size-medium);
+  font-weight: var(--sl-font-weight-normal);
+  line-height: var(--sl-line-height-normal);
+  color: var(--sl-color-neutral-900);
+  padding: 0;
+  margin: 0;
+}
+
+*,
+*::before,
+*::after {
+  box-sizing: inherit;
+}
+
+::part(menu) {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  padding: 18px;
+}
+
+::part(language-chooser) {
+  width: 100px;
+}
+
+:root,
+:host,
+.sl-theme-light {
+  --sl-focus-ring-width: 0;
+}
diff --git a/src/structure/ngv-page.ts b/src/structure/ngv-page.ts
index 52e96e6..032872b 100644
--- a/src/structure/ngv-page.ts
+++ b/src/structure/ngv-page.ts
@@ -100,19 +100,12 @@ export class NgvPage extends LitElement {
       grid-area: footer;
     }
 
-    /* FIXME: outside of this component */
     .divider {
       position: absolute;
       z-index: 1;
       top: 30px;
-      width: 24px;
-      height: 24px;
-      border-radius: 50%;
-      background-color: red;
-      cursor: pointer;
     }
 
-    /* FIXME: outside of this component */
     sl-split-panel {
       --divider-width: 2px;
       --max: 300px;
@@ -149,7 +142,9 @@ export class NgvPage extends LitElement {
             class="divider"
             slot="divider"
             @click=${() => this.dividerClick()}
-          ></div>
+          >
+            <slot name="divider"></slot>
+          </div>
           <div class="main" slot="end">
             <div class="main-header">
               <slot name="main-header"></slot>
diff --git a/src/structure/ngv-structure-app.ts b/src/structure/ngv-structure-app.ts
index 61502d6..dc3ca71 100644
--- a/src/structure/ngv-structure-app.ts
+++ b/src/structure/ngv-structure-app.ts
@@ -4,11 +4,15 @@ import {customElement, property} from 'lit/decorators.js';
 import type {Locale} from './helpers/localeHelper.js';
 import {getLocale} from './helpers/localeHelper.js';
 
+import '@shoelace-style/shoelace/dist/components/icon-button/icon-button.js';
+
 import './ngv-page.js';
 import './ngv-structure-header.js';
 import type {IngvSearchContext} from '../interfaces/search/ingv-search-context.js';
 import type {IngvAuthContext} from '../interfaces/auth/ingv-auth-context.js';
 
+import './index.css';
+
 export interface INgvStructureApp {
   languages: Partial<Locale>[];
   authContext?: IngvAuthContext;
@@ -44,9 +48,15 @@ export class NgvStructureApp extends LitElement {
     return html`
       <ngv-page>
         <div slot="header">
-          <ngv-structure-header .config=${this.config}></ngv-structure-header>
+          <ngv-structure-header
+            exportparts="language-chooser"
+            .config=${this.config}
+          ></ngv-structure-header>
         </div>
         <div slot="menu"><slot name="menu"></slot></div>
+        <!-- <div slot="divider">
+          <sl-icon-button name="arrow-left-circle"></sl-icon-button>
+        </div> -->
         <!-- <div slot="main-header">main-header</div> -->
         <div slot="main-content" style="height: 100%"><slot></slot></div>
         <div slot="main-footer">
diff --git a/src/structure/ngv-structure-header.ts b/src/structure/ngv-structure-header.ts
index d5029ae..b9a35ec 100644
--- a/src/structure/ngv-structure-header.ts
+++ b/src/structure/ngv-structure-header.ts
@@ -6,6 +6,10 @@ import {getLocale, setLocale} from './helpers/localeHelper.js';
 import '../plugins/search/ngv-plugin-search.js';
 import '../plugins/auth/ngv-plugin-auth';
 
+import '@shoelace-style/shoelace/dist/components/select/select.js';
+import '@shoelace-style/shoelace/dist/components/option/option.js';
+import type SlSelect from '@shoelace-style/shoelace/dist/components/select/select.js';
+
 @customElement('ngv-structure-header')
 export class NgvStructureHeader extends LitElement {
   @property({type: Object})
@@ -21,7 +25,6 @@ export class NgvStructureHeader extends LitElement {
   `;
 
   render(): HTMLTemplateResult {
-    const currentLocale = getLocale();
     const headerConfig = this.config.header;
     return html`
       <header>
@@ -40,24 +43,21 @@ export class NgvStructureHeader extends LitElement {
             `
           : ''}
 
-        <div>
-          <label for="language">Lang:</label>
-          <select
-            name="language"
-            id="language"
-            @change=${async (evt: Event) => {
-              const el = evt.target as HTMLSelectElement;
-              const locale = this.config.languages[el.selectedIndex];
-              await setLocale(locale);
+        <div part="language-chooser">
+          <sl-select
+            label="Language"
+            size="small"
+            value="${getLocale()}"
+            @sl-change=${async (evt: Event) => {
+              const el = evt.target as SlSelect;
+              await setLocale(el.value as string);
             }}
           >
+            <sl-icon name="translate" slot="prefix"></sl-icon>
             ${this.config.languages.map(
-              (l) =>
-                html`<option value="${l}" ?selected=${l === currentLocale}>
-                  ${l}
-                </option>`,
+              (l) => html`<sl-option value="${l}">${l}</sl-option>`,
             )}
-          </select>
+          </sl-select>
         </div>
       </header>
     `;
diff --git a/vite.config.js b/vite.config.js
index 72e95de..985909d 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -1,5 +1,6 @@
 import {resolve} from 'path';
 import {defineConfig} from 'vite';
+import {viteStaticCopy} from 'vite-plugin-static-copy';
 
 const __dirname = import.meta.dirname;
 
@@ -8,7 +9,16 @@ export default defineConfig({
     strictPort: true,
     port: 1234,
   },
-
+  plugins: [
+    viteStaticCopy({
+      targets: [
+        {
+          src: 'node_modules/@shoelace-style/shoelace/dist/assets/icons',
+          dest: 'assets',
+        },
+      ],
+    }),
+  ],
   build: {
     assetsDir: 'vassets',
     rollupOptions: {