An opacity setter tool
compton-trans [-w WINDOW_ID] [-n WINDOW_NAME] [-c] [-s] OPACITY
compton-trans is a bash script that sets _NET_WM_WINDOW_OPACITY attribute of a window using standard X11 command-line utilities, including xprop(1) and xwininfo(1). It is similar to transset(1) or transset-df(1).
-w WINDOW_ID
Specify the window id of the target window.
-n WINDOW_NAME
Specify and try to match a window name.
-c
Specify the currently active window as target. Only works if EWMH _NET_ACTIVE_WINDOW property exists on root window.
-s
Select target window with mouse cursor. This is the default if no window has been specified.
-o OPACITY
Specify the new opacity value for the window. This value can be anywhere from 1-100. If it is prefixed with a plus or minus (+/-), this will increment or decrement from the target window\(cqs current opacity instead.
Set the opacity of the window with specific window ID to 75%:
compton-trans -w "$WINDOWID" 75
Set the opacity of the window with the name "urxvt" to 75%:
compton-trans -n "urxvt" 75
Set current window to opacity of 75%:
compton-trans -c 75
Select target window and set opacity to 75%:
compton-trans -s 75
Increment opacity of current active window by 5%:
compton-trans -c +5
Decrement opacity of current active window by 5%:
compton-trans -c -- -5
Please report any bugs you find to https://github.com/chjj/compton .
Christopher Jeffrey (https://github.com/chjj).