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+#
+# ~/.config/picom.conf -- Picom compositor configuration
+#
+
+## Backend
+
+# Backend to use: "xrender" or "glx".
+# GLX backend is typically much faster but depends on a sane driver.
+backend: "glx";
+
+## GLX backend
+
+glx-no-stencil: true;
+
+# GLX backend: Copy unmodified regions from front buffer instead of redrawing
+# them all.  My tests with nvidia-drivers show a 10% decrease in performance
+# when the whole screen is modified, but a 20% increase when only 1/4 is.  My
+# tests on nouveau show terrible slowdown.
+glx-copy-from-front: false;
+
+# GLX backend: Avoid rebinding pixmap on window damage.  Probably could improve
+# performance on rapid window content changes, but is known to break things on
+# some drivers (LLVMpipe).  Recommended if it works.
+glx-no-rebind-pixmap: true;
+
+## Shadows
+
+# Enabled client-side shadows on windows.
+shadow: false;
+# The blur radius for shadows. (default 12)
+shadow-radius: 25;
+# The left offset for shadows. (default -15)
+shadow-offset-x: -25;
+# The top offset for shadows. (default -15)
+shadow-offset-y: -25;
+# The translucency for shadows. (default .75)
+shadow-opacity: .3;
+
+# Set if you want different colour shadows
+shadow-red: 0.03;
+shadow-green: 0.03;
+shadow-blue: 0.04;
+
+# The shadow exclude options are helpful if you have shadows enabled. Due to
+# the way compton draws its shadows, certain applications will have visual
+# glitches (most applications are fine, only apps that do weird things with
+# xshapes or argb are affected).  This list includes all the affected apps I
+# found in my testing. The "! name~=''" part excludes shadows on any "Unknown"
+# windows, this prevents a visual glitch with the XFWM alt tab switcher.
+# From "man picom", Format of Conditions: WM_CLASS = class_i, class_g
+shadow-exclude: [
+#    "! name~=''",
+#    "name = 'Notification'",
+#    "name = 'Plank'",
+#    "name = 'Docky'",
+#    "name = 'Kupfer'",
+#    "name = 'xfce4-notifyd'",
+#    "name *= 'VLC'",
+    "name *= 'mpv'",
+    "class_g = 'ffplay'",
+#    "name *= 'compton'",
+#    "name *= 'Chromium'",
+#    "name *= 'Chrome'",
+    "class_g ?= 'Firefox'",
+#    "class_g = 'Conky'",
+    "_NET_WM_STATE@:32a *= '_NET_WM_STATE_STICKY'",
+    "_NET_WM_STATE@:32a *= '_NET_WM_STATE_HIDDEN'",
+    "_GTK_FRAME_EXTENTS@:c",
+    "class_g ?= 'ulauncher'",
+    "class_g ?= 'tray'",
+    "class_g ?= 'i3-frame'",
+#    "class_g ?= 'Notify-osd'",
+#    "class_g ?= 'Cairo-dock'",
+#    "class_g ?= 'Xfce4-notifyd'",
+#    "class_g ?= 'Xfce4-power-manager'"
+    "class_g ?= 'Xfce4-screenshooter'",
+    "class_g ?= 'peek'"
+];
+
+# Avoid drawing shadow on all shaped windows (c.f. --detect-rounded-corners)
+shadow-ignore-shaped: false;
+
+## Opacity
+
+inactive-opacity: 1;
+active-opacity: 1;
+frame-opacity: 1;
+inactive-opacity-override: false;
+
+# Dim inactive windows. (0.0 - 1.0)
+#inactive-dim = 0.1;
+# Do not let dimness adjust based on window opacity.
+#inactive-dim-fixed = true;
+
+# Blur background of transparent windows. Bad performance with X Render
+# backend. GLX backend is preferred.
+blur-method: "dual_kawase";
+blur-strength: 7;
+#blur-method: "kernel";
+# generate kernel using compton-convgen.py --dump-compton gaussian 15 -f sigma=15
+#blur-kernel: "...";
+blur-background: true;
+# Blur background of opaque windows with transparent frames as well.
+blur-background-frame: true;
+# Do not let blur radius adjust based on window opacity.
+blur-background-fixed: true;
+blur-background-exclude: [
+    #"window_type = 'dock'",
+    #"window_type = 'desktop'",
+    "window_type = 'dnd'",
+    "window_type = 'dropdown_menu'",
+    "window_type = 'popup_menu'",
+    #"class_g = 'Rofi'"
+    "class_g ?= 'Xfce4-screenshooter'",
+    # for xfce4-screenshooter triggered from its xfce4-panel button
+    "class_g ?= 'Wrapper-2.0'",
+    "class_g ?= 'peek'"
+];
+
+## Rounded corners
+#corner-radius: 16;
+#rounded-corners-exclude: [
+#    "window_type = 'dock'",
+#    "window_type = 'desktop'",
+#    "class_g ?= 'plasmashell'",
+#    "class_g ?= 'krunner'",
+#    "class_g ?= 'i3-frame'"
+#];
+
+## Fading
+
+# Fade windows during opacity changes.
+fading: true;
+# The time between steps in a fade in milliseconds. (default 10).
+fade-delta: 5;
+# Opacity change between steps while fading in. (default 0.028).
+fade-in-step: 0.03;
+# Opacity change between steps while fading out. (default 0.03).
+fade-out-step: 0.03;
+# Fade windows in/out when opening/closing
+no-fading-openclose: false;
+
+# Specify a list of conditions of windows that should not be faded.
+fade-exclude: [];
+
+## Other
+
+# Try to detect WM windows and mark them as active.
+mark-wmwin-focused: true;
+# Mark all non-WM but override-redirect windows active (e.g. menus).
+mark-ovredir-focused: true;
+# Use EWMH _NET_WM_ACTIVE_WINDOW to determine which window is focused instead
+# of using FocusIn/Out events.  Usually more reliable but depends on a
+# EWMH-compliant WM.
+use-ewmh-active-win: true;
+# Detect rounded corners and treat them as rectangular when
+# --shadow-ignore-shaped is on.
+detect-rounded-corners: true;
+
+# Detect _NET_WM_OPACITY on client windows, useful for window managers not
+# passing _NET_WM_OPACITY of client windows to frame windows.  This prevents
+# opacity being ignored for some apps.  For example without this enabled my
+# xfce4-notifyd is 100% opacity no matter what.
+detect-client-opacity: true;
+
+# Toggle VSync. See also: --vsync drm/opengl/opengl-oml.
+vsync: true;
+
+# Enable DBE painting mode, intended to use with VSync to (hopefully) eliminate
+# tearing.  Reported to have no effect, though.
+dbe: true;
+
+# Unredirect all windows if a full-screen opaque window is detected, to
+# maximize performance for full-screen windows, like games.  Known to cause
+# flickering when redirecting/unredirecting windows.  paint-on-overlay may make
+# the flickering less obvious.
+unredir-if-possible: true;
+
+# Specify a list of conditions of windows that should always be considered focused.
+focus-exclude: [];
+
+# Use WM_TRANSIENT_FOR to group windows, and consider windows in the same group
+# focused at the same time.
+detect-transient: true;
+# Use WM_CLIENT_LEADER to group windows, and consider windows in the same group
+# focused at the same time.  WM_TRANSIENT_FOR has higher priority if
+# --detect-transient is enabled, too.
+detect-client-leader: true;
+
+opacity-rule: [
+    "100:name *?= 'Call'",
+    "100:name *?= 'Conky'",
+    "100:class_g = 'Darktable'",
+    "50:class_g = 'Dmenu'",
+    "100:name *?= 'Event'",
+    "100:class_g = 'Firefox'",
+    "100:class_g = 'GIMP'",
+    "100:name *?= 'Image'",
+    "100:class_g = 'Lazpaint'",
+    "100:class_g = 'Midori'",
+    "100:name *?= 'Minitube'",
+    "83:class_g = 'Mousepad'",
+    "100:name *?= 'MuseScore'",
+    "90:name *?= 'Page Info'",
+    "100:name *?= 'Pale Moon'",
+    "100:name *?= 'Screenshot'",
+    "100:class_g = 'Viewnior'",
+    "100:name *?= 'VirtualBox'",
+    "100:name *?= 'VLC'",
+    "100:class_g = 'mpv'",
+    "100:name *?= 'Write'",
+    "0:_NET_WM_STATE@:32a *= '_NET_WM_STATE_HIDDEN'",
+    "100:_NET_WM_STATE@:32a *= '_NET_WM_STATE_STICKY'"
+];
+
+## Window type settings
+
+wintypes: {
+    # WINDOW_TYPE is one of the 15 window types defined in the EWMH standard:
+    #   https://specifications.freedesktop.org/wm-spec/latest/ar01s05.html#idm45550357242464
+    # fade: Fade the particular type of windows.
+    # shadow: Give those windows shadow
+    # opacity: Default opacity for the type of windows.
+    # focus: Controls whether the window of this type is to be always considered
+    #   focused. (By default, all window types except "normal" and "dialog" has
+    #   this on.)
+    # full-shadow: Controls whether shadow is drawn under the parts of the
+    #   window that you normally won't be able to see. Useful when the window
+    #   has parts of it transparent, and you want shadows in those areas.
+    # redir-ignore: Controls whether this type of windows should cause screen to
+    #   become redirected again after been unredirected. If you have
+    #   --unredir-if-possible set, and doesn't want certain window to cause
+    #   unnecessary screen redirection, you can set this to true.
+
+    normal: {
+        opacity: 1;
+    };
+
+    dialog: {
+        opacity: 1;
+    };
+
+    # On-screen notification
+    notify: {
+        opacity: 1;
+    };
+
+    tooltip: {
+        opacity: .85;
+    };
+
+    # Desktop window with icons etc.
+    desktop: {
+    };
+
+    # Persistent dock, usually on top of all other windows
+    dock: {
+        opacity: 1;
+    };
+
+    # Window representing something being dragged
+    dnd: {
+        opacity: .85;
+        shadow: true;
+        full-shadow: true;
+    };
+
+    # Menu "torn off" from another window
+    menu: {
+        opacity: 1;
+    };
+
+    # Toolbar "torn off" from another window
+    toolbar: {
+        opacity: 1;
+    };
+
+    # A menu from a right click
+    popup_menu: {
+        opacity: 1;
+    };
+
+    # A menu from a menu bar
+    dropdown_menu: {
+        opacity: 1;
+    };
+
+    # The pop-up/drop-down from a combo box
+    combo: {
+        opacity: 1;
+    };
+
+    # A starting application's splash screen
+    splash: {
+        opacity: 1;
+    };
+
+    # A small persistent utility window, such as a palette or toolbox
+    utility: {
+    };
+
+    unknown: {
+    };
+};