Bug Report: Theme previews not working

[alqix0]

This issue is a problem with AdwSteamGtk and not the Theme it installs:

• Yes

I have checked the Troubleshooting page

• Yes

Description of Issue:

Theme previews not working

Steps to Reproduce:

1. Open app
2. Select theme
3. Preview not appears

CLI Output:

flatpak run io.github.Foldex.AdwSteamGtk
(process:2): GLib-GIO-WARNING **: 02:13:00.183: Can't find module 'dconf' specified in GSETTINGS_BACKEND
(adwaita-steam-gtk:2): Gtk-WARNING **: 02:13:01.779: Theme parser error: <data>:1:46-47: Unexpected data at end of rgb() argument
(adwaita-steam-gtk:2): Gtk-WARNING **: 02:13:01.779: Theme parser error: <data>:12:45-46: Unexpected data at end of rgba() argument

Other Info (Screenshots, etc):

• I've tried with multiple distros (Gentoo and Arch)

[tkashkin]

Colors in themes are now !important and this breaks the color parser here.

[alqix0]

Will you create a pull request?

[tkashkin]

#80