chrome extensions manifest v3 clone to edge extensions

my microsoft edge appearance is Light theme
But my extensions manifest version v3 sidepanel is Dark. For example:

enter image description here
enter image description here

I don’t know how to solve it?

Micosoft Edge Version
Macos:
Microsoft Edge
Version 129.0.2792.65 (正式版本) (arm64)

CSS cannot solve this question

html, body {
background: #fff
}