Bug fix to the colour popup menu.The "this is how many bpp I'm looking to...
Robert Sprowson authored
Bug fix to the colour popup menu.The "this is how many bpp I'm looking to ungrey" value only got incremented when a successful mode match was made so you could never get greyed entries at the start of a menu - that would just lead to a completely grey menu.

This now evaluates all modes into a bit mask,then ungreys selected
entries as required.
Now also forces a redraw of its iconbar icon when the MDF is changed so
that the display manager icon can look like the monitor the MDF describes.

Version 0.38. Tagged as 'Display-0_38'
3c17f6fb