Uniform regions (solid backgrounds, smooth gradients) get stored as large blocks. Detailed regions (edges, textures) get subdivided into smaller blocks. You end up with a compressed representation that preserves detail where it exists and simplifies where it can.
If this code was a really hot part of your program, you might be
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63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
Provides a stable, long-term funding model, independent of volatile corporate and personal budgets.