Several problems (icons und header size) with the configuration

[flonair]

Hey,
i have some problems with the configuration:

1. I want to use a theme with rounded corners. The lower part of the banner-card overlays these round corners.
2. When I use an icon (mdi or a Python Src), it is only displayed in black and white and not rendered.
3. I can't change the card size. I changed --banner-card-heading-size from 3em to 2em, but nothing happens. Not even after a restart.

Please can someone help me?