chore(release): Version-Bump 2.4.0 (6 Stellen) + CHANGELOG

CHANGELOG.md

@@ -6,6 +6,19 @@ All notable changes per version. Format based on [Keep a Changelog](https://keep
 
 ---
 
+## [2.4.0] — 2026-06-15
+
+### Added
+- **Custom theme builder** — A new "Custom" tile in the theme picker opens an inline panel with six colour pickers (accent, background, board surface, and three text levels). Colours apply live to the dashboard; the accent drives the derived glow, border and toggle tints via `color-mix`. A non-blocking WCAG contrast indicator flags hard-to-read text/background combinations without preventing the choice. The custom theme persists across reloads and can be combined with a custom background image. A reset button returns the pickers to neutral defaults. New DE/EN i18n strings; the `<input type="color">` pickers are labelled for accessibility.
+- **Custom background via https URL** — The background URL field now accepts `https://` images in addition to local uploads (http stays out to avoid mixed content). A privacy note explains that a URL-loaded image is fetched from the remote server on every new tab.
+
+### Changed
+- Uploaded background images are downscaled (to the longest screen edge, capped at 2560px) and re-encoded as WebP before storage, to protect the `chrome.storage.local` quota.
+- The extension-page CSP gains `img-src 'self' https: data: blob:` so https and data-URL backgrounds load deterministically instead of relying on the browser default.
+- Onboarding slide 3 wording no longer hard-codes a fixed theme count.
+
+---
+
 ## [2.3.0] — 2026-06-14
 
 ### Added

manifest.firefox.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",

manifest.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",

manifest.opera.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.3.0",
+  "version": "2.4.0",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",

newtab.html

@@ -241,7 +241,7 @@
     <div class="panel-footer">
       <div class="about-block">
         <div class="about-logo" data-i18n="about.title">⬡ HELLION NEWTAB</div>
-        <div class="about-version">Version 2.3.0 · by Hellion Online Media</div>
+        <div class="about-version">Version 2.4.0 · by Hellion Online Media</div>
 
         <div class="about-links">
           <a href="https://hellion-media.de/impressum" target="_blank" class="about-link">

src/js/app.js

@@ -119,7 +119,7 @@ async function checkBackupReminder() {
     const notesData = (widgetData && Array.isArray(widgetData.notes)) ? widgetData.notes : [];
     const calcHistory = (widgetData && widgetData.calculator) ? widgetData.calculator.history || [] : [];
     const timerPresets = (widgetData && widgetData.timer) ? widgetData.timer.presets || [] : [];
-    const data = { version: '2.3.0', exported: new Date().toISOString(), boards, settings, trash, notes: notesData, calculator: calcHistory, timerPresets };
+    const data = { version: '2.4.0', exported: new Date().toISOString(), boards, settings, trash, notes: notesData, calculator: calcHistory, timerPresets };
     const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
     const url  = URL.createObjectURL(blob);
     const a    = document.createElement('a');

src/js/data.js

@@ -39,7 +39,7 @@ function initDataButtons() {
   btnExport.addEventListener('click', async () => {
     const widgetData = await Store.get('widgetStates');
     const data = {
-      version: '2.3.0',
+      version: '2.4.0',
       exported: new Date().toISOString(),
       boards,
       settings,