UI issue: Black block appears in the top-right corner

[qiyuechen0929]

Before filing

• I searched existing issues and this isn't a duplicate

Area

Chat UI (src/)

What happened

Hi, I found a UI issue in OpenMausBot.

There is a black block appearing in the top-right corner of the interface. It affects the visual appearance and user experience.

Could you please check and fix this issue?

Thanks for your work!

Version and install

OpenMausBot Version: Latest

Logs

[milind-soni]

Thanks for the report — reproduced and fixed in #530.

That black block is the Windows caption-button overlay (the strip behind the minimize/maximize/close buttons). It's drawn by the OS, not the web page, so it sat outside everything the skins recolor — the app hardcoded it to Midnight's black regardless of which skin was active, which is why it shows up as a black rectangle on the light skins (Atelier, Lagoon).

The fix tells the native overlay which skin is active (matching each skin's header colour), so the corner now blends in. It's Windows-only; macOS and Linux draw their own window controls and were never affected. Ships in the next release.