I am aware of inverting X11 window using the following command
xcalib -invert -alter
However, I could not find a command for inverting the colors of an individual application.
I tried inverting the colors of an application by running the application inside Xephyr or Xnest and trying to run xcalib command inside of that, but it failed stating:
DISPLAY=:1 xcalib -invert -alter
Xlib: extension "XFree86-VidModeExtension" missing on display ":1".
Error - Unable to query gamma ramp size
Then I learned that Xnest can be started with XFree86-VidModeExtension, and tried the same as follows:
Xnest -ac -br +extension "XFree86-VidModeExtension"
Then I tried xcalib -invert -alter command on the display :1 again. It failed
I am running the ubuntu VM inside Virtualbox and running dwm window manager in it
Is there any way to run xcalib inside a nested X
compiz
can invert colors of individual windows.
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