Flatpak and GTK4 apps

[Flashwalker]

Any solution to fix Flatpak and GTK4 apps?

Flatpak:

They seem to have their own shadows... or something

For GTK4 file dialog i set exclusion:

,"class_g = 'xdg-desktop-portal-gnome'" # GTK4 file dialog. -shadow, -blur

for now Gnome gayvelopers uses GTK4 for xdg-desktop-portal file dialog in Flatpak apps:

[Flashwalker]

The only way i found for now is to whitelist certain apps and exclude the rest:
E.g.:

# Blur: whitelist:
blur-background-exclude = [
  "class_g != 'URxvt' &&
   class_g != 'Alacritty' &&
   class_g != 'st-256color' &&
   class_g != 'tabbed' &&
   class_g != 'kitty' &&
   class_g != 'Xfce4-terminal' &&
   class_g != 'Notification' &&
   window_type != 'tooltip' &&
   window_type != 'menu' &&
   window_type != 'popup_menu' &&
   window_type != 'dropdown_menu' &&
   window_type != 'splash' &&
   window_type != 'combo'"
   
   ,"name = 'Whisker Menu'"
   ,"name = 'xfce4-panel-plug'"
];

[Flashwalker]

or just:

wintypes : 
{
  normal = {
    blur-background = false;
  };
};

[absolutelynothelix]

afaik you need to exclude _NET_WM_FRAME_EXTENTS or/and _NET_FRAME_EXTENTS atoms. i haven't done that myself so i can't give you an example of this, but you can read the manual or search through the issues for a possible example.