RGB/HEX Color Picker is a Nautilus script.
Checks the codes of selected color, darken or lighten the scheme.
python file Color-Picker
hidden folder .colorchart with
Extract package and copy all content from folder Color-Picker including the hidden folder (.colorchart) into the nautilus-scripts folder (you can find this folder in \'~/.gnome2/nautilus-scripts\')
Do not copy the whole Color-Picker folder, copy only it's content: