I dunno guy. Id like to think we are largely post-matching. If you are a conservative dresser that just needs a little help (ie. You wear a navy suit and brown shoes or a black suit and black shoes most of the time and you don't want to draw attention by wearing your black suit with brown shoes) these types of guides can be helpful. If your clothing library has this many colors of shoes, pants and you can pull off a lumbar jack looking red plaid like that on a regular day, don't worry about it - a mismatch will likely just look like a bold intentional fashion statement.