After converting greyscale to RGB image, only 2 of the channels (Red and Green) are available in the Channels tab. Reproducible: Always Steps to Reproduce: 1. Open a greyscale image or create a B&W image. 2. Open channels tab and observe available channels (Gray and Alpha). 3. Use "Image/Convert Image Color Space" to convert image to RGB 4. Observe contents of "Channels" tab. Actual Results: Shows only Red and Green selectors in the Channels tab. Blue and Alpha channels are still available for painting. They are simply not available in the Channels selector. Expected Results: Should show selectors under the Channels tab for Red, Green, Blue and Alpha. This appears to be a general problem with image conversion. Whatever number of channels were allocated when the image was created or loaded will be the number available when the image is converted (example: Converting an RGB image to CMYK shows only the CMY and K channels, with no alpha. Converting to greyscale correctly reduces the number of channels to Gray and Alpha, but converting back to CMYK still only shows 4 channels.).
Thanks for the report: I can confirm the issue.
Git commit a6b160cce861547e750e298a685f6ae08e3d9b7e by Boudewijn Rempt. Committed on 18/12/2013 at 12:42. Pushed by rempt into branch 'master'. M +4 -0 krita/plugins/extensions/dockers/channeldocker/channeldocker_dock.cpp M +7 -1 krita/plugins/extensions/dockers/channeldocker/channelmodel.cpp M +3 -0 krita/plugins/extensions/dockers/channeldocker/channelmodel.h http://commits.kde.org/calligra/a6b160cce861547e750e298a685f6ae08e3d9b7e
Git commit 676c3c8e0bd3b245b3122eb641ff95e7b2627fa4 by Boudewijn Rempt. Committed on 18/12/2013 at 12:42. Pushed by rempt into branch 'calligra/2.8'. M +4 -0 krita/plugins/extensions/dockers/channeldocker/channeldocker_dock.cpp M +7 -1 krita/plugins/extensions/dockers/channeldocker/channelmodel.cpp M +3 -0 krita/plugins/extensions/dockers/channeldocker/channelmodel.h http://commits.kde.org/calligra/676c3c8e0bd3b245b3122eb641ff95e7b2627fa4