Compares only the matching channels and treats the mismatching channels' reference values as 0 for colors and 1 for alpha.
Also removes the (previously only partially supported) special treatment of images that only contain alpha channels. This behavior needs to be re-thought and universally implemented in the future.
Compares only the matching channels and treats the mismatching channels' reference values as 0 for colors and 1 for alpha.
Also removes the (previously only partially supported) special treatment of images that only contain alpha channels. This behavior needs to be re-thought and universally implemented in the future.
Fixes #198