White Vimmatic console frame is visible when I press Escape key, in Github (dark mode enabled)

[akt1n4]

Current behavior

A white frame appears when I press Escape key, when I'm in dark mode.
So far, in the limited websites I have checked it seems to happen only in github.
A deja vu, like in that vim-vixen issue, this one.
It feels similar, but not so similar, as the current one happens when I press Escape key only, and fix/workaround from the previous issue doesn't seem to work for this.

With inspect element, I found that white frame (iframe) had id vimmatic-console-frame

I don't know if it was present earlier, I didn't notice it, but I updated Firefox just today, so a recent version of Firefox might have caused this issue.

Steps to reproduce

1. Open github.com (with darkmode, i.e github's default darkmode)
2. Press Escape key
3. A white frame appears at the bottom of the screen.

Environment

• OS: voidlinux
• Browser: Firefox 113.0
• Vimmatic version: 0.3.0

Edit: The same happens in codeberg, element web client (matrix) too.