ConstReadonlyNoBakedLines: 4Omit baked line textures; antialiased lines use geometry instead.
ReadonlyNoMouseCursors: 2Omit software cursor shapes to save atlas space.
ReadonlyNone: 0Build the default atlas with cursor and line resources.
ReadonlyNoPowerOfTwoHeight: 1Do not round texture height up to a power of two.
Font-atlas texture sizing and optional baked resources.