i3 + Compton

# Compton
# seq 0 3 | xargs -l1 -I@ compton -b -d :0.@  # Multihead support
#exec --no-startup-id "compton -b"
exec --no-startup-id compton --opacity-rule '100:window_type = "dock" && class_g = "i3bar"' --config ~/.config/compton.conf -b


// Compton's config
# Config wireframe stolen from here: https://github.com/nim-/dotfiles/blob/master/.config/compton.conf

# Shadow
shadow = true;          # Enabled client-side shadows on windows.
no-dock-shadow = false;     # Avoid drawing shadows on dock/panel windows.
no-dnd-shadow = true;       # Don't draw shadows on DND windows.
clear-shadow = true;        # Zero the part of the shadow's mask behind the window (experimental).
shadow-radius = 12;     # The blur radius for shadows. (default 12)
shadow-offset-x = -15;      # The left offset for shadows. (default -15)
shadow-offset-y = -15;      # The top offset for shadows. (default -15)
#shadow-red = 0.0;      # Red color value of shadow. (0.0 - 1.0, defaults to 0)
#shadow-green = 0.0;        # Green color value of shadow. (0.0 - 1.0, defaults to 0)
#shadow-blue = 0.0;     # Blue color value of shadow. (0.0 - 1.0, defaults to 0)

# Exclude conditions for shadows.
# Fix dual shadow on some gtk3 powered applications: "_GTK_FRAME_EXTENTS@:c"
shadow-exclude = [
           "n:e:Notification",
           "class_g = 'Gnome-screenshot'",
           "class_g = 'Gnome-control-center'",
           "class_g = 'Nautilus'"
           ];
           #"_GTK_FRAME_EXTENTS@:c"


shadow-ignore-shaped = false;   # Avoid drawing shadow on all shaped windows (see also: --detect-rounded-corners)

# Opacity
shadow-opacity = 0.7;           # The translucency for shadows. (default .75)
active-opacity = 1.0;
menu-opacity = 1.0;         # The opacity for menus. (default 1.0)
#frame-opacity = 0.8;           # Opacity of window titlebars and borders. (0.1 - 1.0)
#inactive-opacity = 0.9;        # Opacity of inactive windows. (0.1 - 1.0)
#inactive-opacity-override = true;  # Inactive opacity set by 'inactive-opacity' overrides value of _NET_WM_OPACITY.

#alpha-step = 0.06;         # XRender backend: Step size for alpha pictures. Increasing it may result in less X resource usage, yYet fading may look bad.
# inactive-dim = 0.2;           # Dim inactive windows. (0.0 - 1.0)
# inactive-dim-fixed = true;        # Do not let dimness adjust based on window opacity.
# blur-background = true;       # Blur background of transparent windows. Bad performance with X Render backend. GLX backend is preferred.
# blur-background-frame = true;     # Blur background of opaque windows with transparent frames as well.
#blur-background-fixed = false;     # Do not let blur radius adjust based on window opacity.
blur-background-exclude = [ "window_type = 'dock'", "window_type = 'desktop'" ]; # Exclude conditions for background blur.

# Fading
fading = true;          # Fade windows during opacity changes.
fade-delta = 12;        # The time between steps in a fade in milliseconds. (default 10).
fade-in-step = 0.15;        # Opacity change between steps while fading in. (default 0.028).
fade-out-step = 0.15;       # Opacity change between steps while fading out. (default 0.03).
no-fading-openclose = false;    # Fade windows in/out when opening/closing.

# Other
#inactive-dim = 0.5;        # Dim inactive windows. (0.0 - 1.0, defaults to 0).
mark-wmwin-focused = true;  # Try to detect WM windows and mark them as active.
mark-ovredir-focused = true;
detect-rounded-corners = true;

# Window type settings
wintypes:
{
  tooltip = { fade = true; shadow = false; opacity = 0.75; };
};