After 5adefb21 the "computer" names on the
main ("Choose a Computer") dialog (which probably isn't the right term) were
invisible for me on my Android 4.1 device at least. Very light grey on white,
or something like that. Let's try with default colours and then if that
doesn't work *slowly* modify the colours one item by one.

Change-Id: I9ae2ee8232cfa85eee4aba0fbcf69b8c245a1ad6