added background images

changed i3 config

picom/.config/picom.conf

@@ -12,10 +12,12 @@ fade-out-step = 0.05;
 fade-delta    = 8;
 
 # opacity
-# inactive-dim = 0.2
+opacity-rule = [
+  "90:class_g = 'Alacritty'"
+];
 
 # corners
-corner-radius = 2;
+corner-radius = 0;
 rounded-corners-exclude = [
   "window_type = 'dock'"
 ];