I originally made this post to suggest an alias to a few tags, though it's better how they are than what I proposed.
This thread's now more of a discussion on the different colour tags and how posts should be tagged with them.
Original Post:
Title:
[Tag Alias Fix] "no_colour -> monochrome" should be "no_colour -> greyscale"
Content:
I tried going through the normal "suggest an alias" form but you can't suggest a change to a tag that's already aliased.
No_colour is currently aliased to monochrome, but monochrome just means the image only has one colour/shade. The image could be purple_and_white and still be monochrome, however no_colour would imply that the image is actually greyscale.
Others that probably need correcting:
non-colored, non_coloured, no_color, uncoloured, uncolored
Updated