Ever label something so well you hide it from yourself? My "logical" toolbox setup once left me searching for a screwdriver I'd put in the "flat things" section.
Honestly it's just a tool wall, not a lost art form. The whole point is to find your stuff faster, right? If a messy wall worked better for you, then that system had its own kind of order. This feels like making a problem out of something that was already solved. Just move the trowel to where you'll look for it first and call it a day.
My husband built me the most perfect labeled pegboard for my gardening stuff last year. Took him a whole weekend. I was so proud of it I took pictures. Now I can never find my trowel because its "proper place" makes zero sense to my brain. The character was in the knowing where the weird spot was.