The bottom black and whites is for Monochomatic with the top half serving as the palette for the action color. Obviously, the top-half is the Google-inspired vibrant color palette.
It has substantially more colors than one shown as an example in the Google material Design Guide. This is the first major tweaking of colors.
The gpl gimp file for it has not been created yet. If you do create one send me the gist link to my email listed on my github pages:
So that I can properly point to your created gpl files in my gist.
As far as a gimp formatted UI-UX kit, its being created at the moment by choosing the best UI kit and completing the gimp conversions(ie converting to xcf and keeping the embedded rgb profiles). Should be sometime in December when I post the full UI kit including the gpl gimp files.
Remember folks, Google in its Material Design Guide directly states their Hues-And-Accent color matching and monochromatic matching. BUT, they also imply indirectly the other two possible color matching styles as forms of branding. One is choosing the color matching that fits the branding needs of the android app you are designing.
Not every branding case will match up with Google Vibrant or Monochromatic or the other color matching styles. Its your job as the android app designer to determine which color matching style best servers your client's branding needs.