[sync] The button does not look good after being clicked in MUI6

[vaarga]

Steps to reproduce

Link to live example: https://codesandbox.io/p/sandbox/tkrgnd

Steps:

1. Change the variables in Figma for primary and secondary color (maybe this step can be omitted)
   
2. Download the theme and apply it on the Button component
3. Click the button, then move the cursor away from it

Current behavior

Half of the button will have a background color:

Expected behavior

The button should return to its normal (default) state:

Context

We are trying to write as little code as possible to style components.

Your environment

Software	Version
MUI module version	v6.1.6
Design file version	v6.1.0
Design tool	Figma

Search keywords: sync, mui6, figma, button