GTK3 theme dialog box renders solid black background in Audacity

Question

I was using Audacity with a GTK 3 theme I created. On some of the dialog boxes the background comes up as a solid black color, while the theme's background color is a light yellow. I noticed this happens only on some of the dialog boxes.

Below is an image of the Compressor dialog.

I want to know how to get the proper background color, as I checked some other themes with GTK Inspector and they render correctly.

The code for the gtk-widgets.css file is on this GitHub page.

Answer 1

Perhaps you can try:

window > box > widget > widget { background-color:yellow; }