LetmKara uses Chromium Embedded Framework (CEF) for rendering web pages. Chromium is the core in Chrome browser. A webview is like a tab in Chrome browser.
I made some themes for OSD: default, christmas and Tet new year.
To select a theme, go to menu Webview => choose webview packages. Select On-screen display, choose package and click OK. Button Settings is for configuration of the selected webview package. This settings can also be accessed from menu webview => On-screen display => settings.
Because Karaoke scoring is just for fun only and requires some visual effects, its settings is placed here instead of in Settings Window.
Background with webview can be set in Settings Window, tab General. Now they are experiments only.
For now you can choose:
If you have knowledge of web development, especially front-end, you can make your own interface for OSD, main window, background or other webview apps.
For example, this guy changed some image:Back ...