In new Cinnamon version 6.6.2 this theme looks not good

[Xopek-Endurance]

The menu looks especially bad. And I don't know if this button at the top of the window should look like this. I've attached screenshots. The old icons also stopped working, but I made a hotfix and will upload it soon

[Elbullazul]

The header menu button is not supposed to be themed; I'll have a look at it when I find some time.

I'll also try to fix the Cinnamon issue, but I haven't upgraded to Cinnamon 6.6.2 yet (it's still in beta, as far as I know).

[Xopek-Endurance]

The header menu button - This can be fixed by running command

gsettings set org.cinnamon.desktop.wm.preferences button-layout ':minimize,maximize,close'

in the terminal, and then the top window bar will look like it did before or like in Windows. Just in case, you can revert this change with command

gsettings reset org.cinnamon.desktop.wm.preferences button-layout