Subversion Repositories Kolibri OS

Last modification

• Rev 8449 2020-12-18 22:08:51
• Author: dunkaist

• Log message:

  libimg: Improve support of transparent PNG images.
  
  * Support grayscale images with alpha channel.
  * Support rgb images with transparent color.
  * Process 'tRNS' chunk (simple transparency).
  
  Transparent png images were already supported for color type 6, which
  is RGBA. Now indexed images (color type 3) can also have transparency
  via 'tRNS' chunk data.