Theming issues in applications
Setup
OS: Arch Linux (5.7.12-arch1-1) GTK version: GTK2 & 3 WM: i3-gaps Theme version: 5d4b0f2
Problem
The theme goes black in some areas, if the application is unfocused. Other times, the theme seems to not work at all.
Applications tested (including package names)
-
Nemo (
nemo) Only bloken when unfocused -
modem-manager-gui (
modem-manager-gui) only broken when unfocused -
xournalpp (
xournalpp) entirely broken -
xfce4-power-manager-settings (
xfce-4-power-manager) Only broken when unfocused -
thunderbird (
thunderbird) This one seems entirely broken, not just the unfocused issue
Nemo
log output
(nemo:3425): Gtk-WARNING **: 09:09:22.933: Theme parsing error: gtk.css:17:25: negative values are not allowed.

Modem Manager GUI
log output
(modem-manager-gui:3464): Gtk-WARNING **: 09:10:18.461: Theme parsing error: gtk.css:17:25: negative values are not allowed.
Unfocused
log output

Focused (exemplary, to show it behaves correctly when focused)

Xournalpp
log output
(xournalpp:3528): Gtk-WARNING **: 09:12:14.129: Theme parsing error: gtk.css:17:25: negative values are not allowed.

XFCE4 Power Manager Settings
log output
(xfce4-power-manager-settings:3494): Gtk-WARNING **: 09:11:22.959: Theme parsing error: gtk.css:17:25: negative values are not allowed.

Thunderbird
log output
(thunderbird:3570): Gtk-WARNING **: 09:13:07.141: Theme parsing error: gtk.css:17:25: negative values are not allowed.

Are you using the glow variant or the regular? I think I have an idea what's causing that if it's the latter.
forgot to mention.. I'm using the regular variant.
After looking a bit more into it, Notifications by xfce4-notifyd also seem to be affected, they seem to have a transparent background
(top right)

Note the whole goes black thing isn't an issue with the glow variant if that helps.
Great work dude, I may have stole significant portions of it with the gulp workflow for use in my own custom GTK theme for my upcoming Arch variant. Those radio buttons and slides are fire!