"plug-in-wr-curves" Apply Color Curves File Start from Menu: /Video/Layer/Colors/CurvesFile for automated apply, this filter is started indirect via the menus: /Filters/Filter all Layers or /Video/Frames Modify when its internal PDB-name: "plug_in_wr_curves" is selected as filter name. This curves file dialog works the same way as the color curves tool that can be found in the menu: Layer/Colors/Curves) but has no graphical dialog for editing the color curve settings. It needs a color curves file as input. The advantage of this variante is the ability to run automatically on many layers or frames with constant value settings or as animated filter with varying value settings in combination with the GIMP-GAP plug-ins: "Filter All Layer" "Modify Layers" For applying this filter with varying values you need 2 color curves file and provide them as input for the first and last handled layer. All the layers inbetween will be automatically handled with slightly varying the color curve settings from the start color curve to the end color curve.