Of special note are icon sets designed specifically for window titlebar decoration. The number in the icon name refers to the 75dpi font point size of the title bar font. This is actually equal to the pixel size of box containing the symbol, -1.
For example a "12pt" icon set...
I myself use CTWM, which inturn allows the use of the more colorful X pixmaps, and in particualr the "tomato" icons. If interested you can have a look at theCTwm RC Example file which is a cut and simplified verion of my own RC file.TitleFont "*-lucida-bold-i-*-120-75-75-*" # Window Titles NoDefaults # remove all title buttons first (iconify,resize) TitleButtonBorderWidth 0 # remove boarders around title buttons FramePadding 1 # frame padding between text and buttons ButtonIndent 0 # extra indentation around buttons Pixmaps { TitleHighlight "title_squiggle.xbm" } LeftTitleButton "bm_12pt_iconify.xbm" = f.iconify LeftTitleButton "bm_12pt_lightning.xbm" = f.delete LeftTitleButton "bm_12pt_nuke.xbm" = f.destroy RightTitleButton "bm_12pt_fullscrn.xbm" = f.fullzoom RightTitleButton "bm_12pt_expand.xbm" = f.zoom RightTitleButton "bm_12pt_resize.xbm" = f.resize