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replace image (atlas) in cache with bitmapdata


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somebody asked if you could tint a whole sprite atlas.


My idea was to load the same PNG separately as an image, tint it, draw it to bitmap data and then overwrite the cache object for the atlas. I can create a dataURL for the image but I'm not sure it's possible to overwrite an existing cache item's URL etc.


(obviously this is likely to be calling private methods or rather updating non-public properties, but it'd still be interesting to know if it's doable)


thanks for any advice






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