Modern Picon config with blur and transparency

picon.conf

##############################################
#               Backend + VSync              #
##############################################

backend = "glx";
vsync = true;  # Prevent tearing
experimental-backends = true;

##############################################
#                  Shadows                   #
##############################################

shadow = true;
shadow-radius = 10;
shadow-offset-x = -5;
shadow-offset-y = 0;
shadow-opacity = 0.4;
shadow-color = "#000000";

shadow-red = 0.11;
shadow-green = 0.12;
shadow-blue = 0.13;

shadow-exclude = [
  "name = 'Notification'",
  "_GTK_FRAME_EXTENTS@:c",
  "class_g = 'mpv'",
  "class_g = 'vlc'",
  "window_type = 'desktop'"
];

shadow-ignore-shaped = true;

##############################################
#                 Blur Only                  #
##############################################

blur-background = true;
blur-background-frame = true;
blur-background-fixed = true;

blur-kern = "7x7box";
blur-method = "dual_kawase";
blur-strength = 7;

blur-background-exclude = [
  "class_g = 'mpv'",
  "class_g = 'vlc'",
  "window_type = 'desktop'",
  "_GTK_FRAME_EXTENTS@:c"
];


##############################################
#         Opacity (Only Inactive Dimming)    #
##############################################

inactive-dim = 0.2;
inactive-opacity = 0.9;
active-opacity = 1;
frame-opacity = 1;

opacity-exclude = [
  "class_g = 'mpv'",
  "class_g = 'vlc'",
  "class_g = 'firefox'"
];

##############################################
#                  Fading                    #
##############################################

fading = true;
fade-delta = 5;
fade-in-step = 0.02;
fade-out-step = 0.02;

fade-exclude = [
  "class_g = 'mpv'",
  "class_g = 'vlc'",
  "class_g = 'firefox'",
  "class_g = 'Chromium'",
  "class_g *= 'steam'",
  "class_g *= 'zoom'",
  "window_type = 'dock'",
  "window_type = 'desktop'",
];


##############################################
#            Window Focus Rules              #
##############################################

focus-exclude = [
  "class_g = 'mpv'",
  "class_g = 'vlc'",
  "class_g = 'firefox'",
  "class_g *?= 'steam'"
];

mark-wmwin-focused = true;
mark-ovredir-focused = true;
unredir-if-possible = false;
use-ewmh-active-win = true;

##############################################
#         Performance + Detection Hints      #
##############################################

use-damage = true;
glx-no-stencil = true;
glx-copy-from-front = false;

detect-transient = true;
detect-rounded-corners = true;
detect-client-opacity = true;
detect-client-leader = false;

##############################################
#             Window Type Rules              #
##############################################

wintypes: {
  tooltip = { fade = true; shadow = false; opacity = 1.0; focus = true; };
  dnd = { shadow = false; };
};


##############################################
#             Rounded Corners                #
##############################################
corner-radius = 0;
rounded-corners-exclude = [
  "class_g = 'mpv'",
  "class_g = 'vlc'",
  "window_type = 'dock'",
  "window_type = 'desktop'"
];