picom-trans:tldr:d3396
The command you provided is likely a part of a script or configuration for configuring the transparency of windows using the picom compositor on Linux. Here's an explanation of each part:
picom-trans
: Refers to the command or script name being executed.
--select
: This flag instructs picom-trans to select the window you want to modify the opacity (transparency) for. You might need to click on the desired window after running this command to specify which window you want to modify.
--opacity
: This flag specifies the property being modified, which in this case is the opacity.
${90}
: This represents the value of the opacity you want to set for the selected window, which is 90 in this case. Opacity values range from 0 (completely transparent) to 100 (fully opaque).