all gimp-channel* removed highlights
all gimp-prefs-folders* are identical for all sizes and have folders in their symbolic
gimp-tool-crop synced with symbolic and krita
gimp-path* synced with symbolic
gimp-tool-ink now has a fountain-pen in its symbol (to better fit to inkscape and krita)
gimp-tool-airbrush new
gimp-tool-colorize synced with symbolic
gimp-icon-theme synced with symbolic
gimp-tool* new, gimp is for painters and artists and ..., not for brick-layers, lock-smiths ... (naturally they can paint with gimp too...), corrected metaphor.

Signed-off-by: klausstaedtler <staedtler-przyborski@web.de>