Currently I am trying to create a grayscale version of Human called "Grayman." So far I am pleased with how the icons have turned out; most of the icons are not complete grayscales in that I am only using the Red and Green channels for the shading. I am having trouble, though, trying to grayscale all of the channels with image magick. Whenver I used the convert or mogrify command in imagemagick with the channel set to RGB, it would always return the same image. How can I use imagemagick to use all chanels to create a grayscale image? Attached is what the icons look like so far.
Grayscale Human Icons
Archived thread 364735 from Ubuntu Customization Guide. Markdown source: Ubuntu_Customization_Guide/thread_364735_Grayscale_Human_Icons.md