diff --git a/config/defaults.ts b/config/defaults.ts
index e32f9857..0108db0e 100644
--- a/config/defaults.ts
+++ b/config/defaults.ts
@@ -65,7 +65,7 @@ const defaultConfig = {
     proxy: '',
     startingPage: '',
     overrideUserAgent: false,
-    themes: {} as string[],
+    themes: [] as string[],
   },
   'plugins': {
     // Enabled plugins
diff --git a/menu.ts b/menu.ts
index fca99e6d..7ff969d9 100644
--- a/menu.ts
+++ b/menu.ts
@@ -150,7 +150,7 @@ export const mainMenuTemplate = (win: BrowserWindow): MenuTemplate => {
                 {
                   label: 'No theme',
                   type: 'radio',
-                  checked: !config.get('options.themes'), // Todo rename "themes"
+                  checked: config.get('options.themes').length === 0, // Todo rename "themes"
                   click() {
                     config.set('options.themes', []);
                   },
@@ -158,8 +158,7 @@ export const mainMenuTemplate = (win: BrowserWindow): MenuTemplate => {
                 { type: 'separator' },
                 {
                   label: 'Import custom CSS file',
-                  type: 'radio',
-                  checked: false,
+                  type: 'normal',
                   async click() {
                     const { filePaths } = await dialog.showOpenDialog({
                       filters: [{ name: 'CSS Files', extensions: ['css'] }],