Reported-By: Dr. Stefan Thurner (TU-Chemnitz)
Since 4.7, on monochrome terminals (eg. xterm-mono) the
selections are not visible anymore (pre 4.7 inverted
the selected text).
Probably this has to do w/ the new skinning stuff.
Fix issue: added additional check for b&w terminal into skins engine.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>