Recently in topic #12251, the question of how to tag these kinds of incredibly large borders (using post #7067329 from that discussion as our example) cropped up. I have personally come across many of these myself and been frustrated by my inability to tell what the proper tagging procedure is here, so I found myself pondering the viability of a hypothetical "large border" tag for these kinds of borders. If there's a tag for it, that would eliminate the confusion of wondering if to tag "[color] background + border" or two-tone background, but at the same time this feels like the sort of tag I don't think should be created and then populated without checking with others.
Thoughts on this idea?