d/debian.theme: refresh file with upstream version
d/debian.theme: refresh file with upstream version

Among other things, prevent this warning:
 liquidprompt: LP_COLORMAP_x variables are deprecated. Update your theme to use LP_COLORMAP array.

Closes: #826097
Signed-off-by: Arturo Borrero Gonzalez <6536d6b0723dedf12377d931b2edd2f9488a948b@gmail.com>
aborrero/pkg-liquidprompt