Mate Desktop: Composited Volume/Brightness bar barely visible

[tycho-kirchner]

Hi, and thanks for this nice theme 🙂.
I see a minor issue in Mate desktop: when compositing is enabled the volume/brighness slider is barely visible.
I hotfixed it by appending the following snippet to gtk-3.0/gtk.css

.osd .progressbar,
.osd progressbar,
progressbar .osd {
border-style: none;
background-color: rgba(255, 255, 255, 0.8);
background-image: none;
border-radius: 0;
}

After all since Adwaita, Breeze and many other none-Mate themes are affected I'm not really sure whom to blame. If you believe it is rather an issue of the Mate desktop than the Greybird theme, maybe you can convince the developers 😅?

See also this and this issue.

Thanks
Tycho

Version:
Vanilla Greybird 3.22.14-1 on Debian 11.

[ochosi]

After all since Adwaita, Breeze and many other none-Mate themes are affected I'm not really sure whom to blame.

Honestly if that many themes are affected then either adding a specific class for this type of .osd would be great so themes can add a Mate specific style or alternatively this needs to be fixed in the Mate desktop (especially if it doesn't work with Adwaita, which is the reference theme for Gtk).