Trying to change GTK2 Theme in KDE Settings has no effect.
It only writes one line to ~/.gtkrc-2. e.g.
gtk-theme-name="oxygen-gtk"
It wrote much more under Leap 15.1 like
# File created by KDE Gtk Config
# Configs for GTK2 programs
include "/usr/share/themes/oxygen-gtk/gtk-2.0/gtkrc"
include "/etc/gtk-2.0/gtkrc"
style "user-font"
{
font_name="Noto Sans Regular"
}
widget_class "*" style "user-font"
gtk-font-name="Noto Sans Regular 10"
gtk-theme-name="oxygen-gtk"
gtk-icon-theme-name="oxygen"
gtk-fallback-icon-theme="HighContrast"
gtk-cursor-theme-name="DMZ-White"
gtk-toolbar-style=GTK_TOOLBAR_ICONS
gtk-menu-images=1
gtk-button-images=1
gtk-primary-button-warps-slider=0
When I copy this file over to 15.2, the correct theme is showing up on GTK2 Applications.
The main thing missing in this example is the line
include "/usr/share/themes/oxygen-gtk/gtk-2.0/gtkrc"
Without this, the theme is not selected properly.
Thank you.