The tag icon is a little misleading. To change the task color of the task check completed box - it should really be a hover feature under the box itself that appears with the color options to change the task completed box color.

The tag feature should be updated that should look something like this like what notion has - this is what I was expecting as that is what 'tagging means' - a color and a label given for something to categorize it. Traditionally at least.

If nothing changes at least change the icon of the tag to a square box. Because we're not tagging anything. We're changing the color of the task check completed box.