Approach to make libadwaita apps look native on Plasma

I’ve tried the following gtk4 css:

@import 'colors.css';

window.csd {
    border-radius: 6px;
}

windowcontrols button image:not(:hover) {
    background-color: transparent;
}

windowcontrols button.minimize {
    padding: 0px;
}

windowcontrols button.maximize {
    padding: 0px;
}

windowcontrols button.close {
    padding: 0px;
}

It does the following things:

  1. Set the window decoration radius to 6px;
  2. Hide the circles behind window control buttons;
  3. Remove the padding between window control buttons.

It doesn’t change the color scheme.

I’m wondering if this configuration can be added to Plasma’s theme settings.

Screenshot: