Can't get window name or class for gifine (lua script) app to avoid fullscreen blur

[Flashwalker]

There is a gifine app for screen record. It's a lua script. It uses xrectsel script to select a part of the screen. During the selection a fullscreen transparent window appears and it's blured, and no way to xprop it, because it grabs the mouse.
Any ideas?

For gifine window (not that fullscreen transparent window) class is:
WM_CLASS(STRING) = "lua5.1", "Lua5.1"

i tried to exclude blur for:

    ,"class_g = 'lua5.1'"
    ,"class_g = 'Lua5.1'"
    ,"class_i = 'lua5.1'"
    ,"class_i = 'Lua5.1'"
    ,"name *= 'Lua5.1'"
    ,"name *= 'lua5.1'"
    ,"name ~= 'Lua5.1'"
    ,"name ~= 'lua5.1'"

nothing helps

cdfrgvtbh.mp4

[Flashwalker]

The only workaround 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]

are you sure that your gifine uses xrectsel, not slop? if it really uses xrectsel, i'd recommend you to switch to slop. if it uses slop, it's window can be excluded with class_i = 'slop'.

[Flashwalker]

thanks, i'll try