Please read the link you gave carefully, icons for .desktop files should be 48x48 and for Debian menu 32x32.
Since the original is 32x32 though and there is no better leave it as is.
I would however crop the color palette to 3 (4 inc. background) colors only.
Please read the link you gave carefully, icons for .desktop files should be 48x48 and for Debian menu 32x32.
Since the original is 32x32 though and there is no better leave it as is.
I would however crop the color palette to 3 (4 inc. background) colors only.