fix: auto-create swap subdirs, add folder buttons, fix CSS theme injection

src/main/index.ts

@@ -229,6 +229,12 @@ async function launchApp(): Promise<void> {
   // ── Resource swapper ──
   const swapperConfig = config.get('swapper');
   const swapDir = swapperConfig.path || join(app.getPath('userData'), 'Krunker Civilian Client', 'swapper');
+  // Ensure swap subdirectories exist (themes/, backgrounds/)
+  for (const sub of ['themes', 'backgrounds']) {
+    const dir = join(swapDir, sub);
+    if (!existsSync(dir)) mkdirSync(dir, { recursive: true });
+  }
+
   const swapper = swapperConfig.enabled ? new ResourceSwapper(swapDir) : null;
   electronLog.log(`[KCC] Resource swapper: ${swapper ? 'enabled' : 'disabled'} (${swapDir})`);
 
@@ -510,10 +516,20 @@ async function launchApp(): Promise<void> {
       win.webContents.insertCSS(ALL_CLIENT_CSS),
     ];
 
-    // Inject user CSS theme
+    // Inject user CSS theme via <style> tag so @import rules work
     const uiConf = config.get('ui');
-    const themeCSS = getThemeCSS(uiConf?.cssTheme || 'disabled', swapDir);
+    const themeId = uiConf?.cssTheme || 'disabled';
-    if (themeCSS) cssInjections.push(win.webContents.insertCSS(themeCSS));
+    const themeCSS = getThemeCSS(themeId, swapDir);
+    electronLog.log(`[KCC] CSS theme: id=${themeId}, css=${themeCSS ? themeCSS.length + ' chars' : 'none'}`);
+    if (themeCSS) {
+      const escaped = themeCSS.replace(/\\/g, '\\\\').replace(/`/g, '\\`').replace(/\$/g, '\\$');
+      win.webContents.executeJavaScript(`(() => {
+        const s = document.createElement('style');
+        s.id = 'kcc-user-theme';
+        s.textContent = \`${escaped}\`;
+        document.head.appendChild(s);
+      })()`).catch((err) => electronLog.warn('[KCC] Theme inject failed:', err));
+    }
 
     // Inject loading screen background
     const loadingCSS = getLoadingScreenCSS(uiConf?.loadingTheme || 'disabled', uiConf?.backgroundUrl || '', swapDir);
@@ -607,6 +623,8 @@ async function launchApp(): Promise<void> {
   });
   ipcMain.handle('get-swap-dir', () => swapDir);
   ipcMain.handle('open-swap-folder', () => shell.openPath(swapDir));
+  ipcMain.handle('open-themes-folder', () => shell.openPath(join(swapDir, 'themes')));
+  ipcMain.handle('open-backgrounds-folder', () => shell.openPath(join(swapDir, 'backgrounds')));
 
   // ── Ping regions IPC handler (TCP connect timing, cached 60s) ──
   ipcMain.handle('ping-regions', async () => {

src/preload/index.ts

@@ -707,7 +707,7 @@ function buildSwapperSection(body: HTMLElement, swapperConf: any, uiConfRaw: any
 
   // ── CSS Theme selector (populated from swap/themes/) ──
   const themeRow = document.createElement('div');
-  themeRow.className = 'setting settName safety-0 sel';
+  themeRow.className = 'setting settName safety-0 sel has-button';
   themeRow.innerHTML =
     '<span class="setting-title">CSS Theme</span>' +
     '<div class="setting-desc-new">Load a custom CSS theme from swap/themes/</div>';
@@ -715,6 +715,12 @@ function buildSwapperSection(body: HTMLElement, swapperConf: any, uiConfRaw: any
   themeSelect.className = 's-update inputGrey2';
   themeSelect.innerHTML = '<option value="disabled">Loading...</option>';
   themeRow.appendChild(themeSelect);
+  const themeFolderBtn = document.createElement('div');
+  themeFolderBtn.className = 'settingsBtn';
+  themeFolderBtn.title = 'Open Themes Folder';
+  themeFolderBtn.innerHTML = '<span class="material-icons">folder</span>';
+  themeFolderBtn.addEventListener('click', () => ipcRenderer.invoke('open-themes-folder'));
+  themeRow.appendChild(themeFolderBtn);
   body.appendChild(themeRow);
 
   ipcRenderer.invoke('list-themes').then((themes: Array<{ id: string; label: string }>) => {
@@ -736,7 +742,7 @@ function buildSwapperSection(body: HTMLElement, swapperConf: any, uiConfRaw: any
 
   // ── Loading Screen Background ──
   const bgRow = document.createElement('div');
-  bgRow.className = 'setting settName safety-0 sel';
+  bgRow.className = 'setting settName safety-0 sel has-button';
   bgRow.innerHTML =
     '<span class="setting-title">Loading Background</span>' +
     '<div class="setting-desc-new">Custom background image for the loading screen (swap/backgrounds/)</div>';
@@ -744,6 +750,12 @@ function buildSwapperSection(body: HTMLElement, swapperConf: any, uiConfRaw: any
   bgSelect.className = 's-update inputGrey2';
   bgSelect.innerHTML = '<option value="disabled">Loading...</option>';
   bgRow.appendChild(bgSelect);
+  const bgFolderBtn = document.createElement('div');
+  bgFolderBtn.className = 'settingsBtn';
+  bgFolderBtn.title = 'Open Backgrounds Folder';
+  bgFolderBtn.innerHTML = '<span class="material-icons">folder</span>';
+  bgFolderBtn.addEventListener('click', () => ipcRenderer.invoke('open-backgrounds-folder'));
+  bgRow.appendChild(bgFolderBtn);
   body.appendChild(bgRow);
 
   ipcRenderer.invoke('list-loading-themes').then((themes: Array<{ id: string; label: string }>) => {