A lot of downloadable sprites come on a coloured background. Very easy to remove that in painting programs, but it would be a lot easier if we could import the sprite straight into scratch then remove that background with a colour replacer brush (that replaces chosen background colour with current ink colour).
For intricate sprites with lots of "holes" in them, flood fill isn't very practical!
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Thats a given, since "transparent" is already in the scratch colour pallete
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