modify colors for all object

Hello
first steps in inskape
I've a set of icon to modify
On gimp i use the dialog hue-saturation with these parameters to transform bitmap
hue = 7
bright = 6
saturation = -12
How can I apply these effect with inskape ?

I only see effect color custom but i don't know how to convert in math operations

Help

Jean-Luc

I've juste à part of solution
After reading http://en.flossmanuals.net/Inkscape/SVGFilterEffects i used object effect filter .
Hue and saturation give result but with brighness i've no value in dialog it just colorise all object in dark
So perhaps it is possible to control bright with matrix ?

Is it possible to save a filter to apply other files?

Bye

Jean-Luc

The best way will be to use command ligne with --verd instructions

In bash this command have a good work:
inkscape --verb org.inkscape.color.morelight.noprefs --verb org.inkscape.color.morehue.noprefs --verb FileSave --verb FileClose /home/jluc/Bureau/star.svg

But how to place an argument for hue in this command line ?

verb for colors:
org.inkscape.color.brighter
org.inkscape.color.brighter.noprefs
org.inkscape.color.lesssaturation
org.inkscape.color.lesssaturation.noprefs
org.inkscape.color.morelight
org.inkscape.color.morelight.noprefs
org.inkscape.color.morehue
org.inkscape.color.morehue.noprefs

Bye

Jean-Luc
org.inkscape.color.morelight
org.inkscape.color.morelight.noprefs:

org.inkscape.color.custom
org.inkscape.color.custom.noprefs