Thank you. I'll document it before releasing the next version.
It belongs to only bitmap because this function doesn't have any effect on children but the only the bitmap itself. On the other hand, I'm planning to put another function to sprite similar to setAnchorPoint.
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It belongs to only bitmap because this function doesn't have any effect on children but the only the bitmap itself. On the other hand, I'm planning to put another function to sprite similar to setAnchorPoint.