* Handle dedup of local palette of 256 length
* handle when foreground overhangs bottom of background
* prevent potential overflow
* reduce to a single par of clamping operations
* correctly calculate Rect when negative target set
* Handle global ani with 256 palette and no trans
* Bump diff for windows
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Co-authored-by: Scott Williams <tocsoft@gmail.com>
Co-authored-by: Scott Williams <166440+tocsoft@users.noreply.github.com>