Failed to beat that dirty pixels in circular rooms.
Code:
<ImageStyle Name="exp03_dun_castle_mistmoore_epic01_coffinchamber" zonerect="-180, -53, 190, 370" >
<ImageFrame Name="imageFrame" Source="images/maps/map_exp03_dun_castle_mistmoore_epic01_coffinchamber.dds" SourceRect="0,0,436,506"/>
</ImageStyle>