Migration Guide : A. Features Introduced in OpenROAD 4.1 : OpenROAD 4.1 New Features : 24-bit Color Bitmaps
 
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24-bit Color Bitmaps
OpenROAD 4.0 supports color images up to 8-bit color resolution. OpenROAD 4.0 can read 24-bit color images, but internally it converts these to 8-bit images. When images are converted, a significant amount of color information is permanently lost, resulting in a grainy picture. The internals of the BitmapObject were modified to remove this restriction.