I've taken a stab at this. Turns out that the new PNG8 code path in Bruno's patch does nothing with the computed baseColorPalette parameter that gets handed down.
So my changes now tell msQuantizeRasterBuffer() to compute a palette of (256 - baseColorPalette.size()) colors, and fill the remainder of the palette with the colors from the baseColorPalette parameter, which is only done if baseColorPalette is not NULL and has < 256 colors. New MgRenderers.dll for MGOS 2.4 RC2 attached to the same ticket. - Jackie -- View this message in context: http://osgeo-org.1560.n6.nabble.com/patch-for-Ticket-743-png8-transparency-tp5003596p5004643.html Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list mapguide-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapguide-users