# Color Mask? Or Setting Color of a PNG Bitmap?

**URL:** <https://forum.kirupa.com/t/color-mask-or-setting-color-of-a-png-bitmap/156987>\
**Category:** flash\
**Created:** [July 29, 2005, 6:49am UTC](https://forum.kirupa.com/t/color-mask-or-setting-color-of-a-png-bitmap/156987 "2005-07-29T06:49:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mike\_Reynolds](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@Mike\_Reynolds](https://forum.kirupa.com/u/Mike_Reynolds)\
**Post date:** [July 29, 2005, 6:49am UTC](https://forum.kirupa.com/t/color-mask-or-setting-color-of-a-png-bitmap/156987/1 "2005-07-29T06:49:47Z")

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I made a movie clip of a sequence of outer glow effects in PhotoShop to give the effect of a pulsating halo. I made the clip seperate from the beveled graphic it surounds so I could mask it. I want to have it pulsating between colors as it expands and contracts. I made the halo white, not anticipating that there would be any great difficulty in masking or changing its color.

So my question is, how do you make a color mask? I can only seem to get alpha masks, it completely ignores the color of the masks I make and lets through all colors, no matter the color of the mask.

Or alternately, is there a why to alter the color of all the pixels in a PNG bitmap, so that the varying transparancy/alpha of different pixels is preserved but the color is uniformly changed?