I've been looking for a way to display single colour channels (for 3d textures with three textures packed to the r, g and b channels) and to view an alpha channel as a simple greyscale image, is there an existing solution or plugin for this? I've searched but mostly found requests related to thumbnail alpha channels, or issues with certain filetypes.
We'll add this in 13.7.1 (probably released next week).
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