capitalization makes things easier to read, which is why they use it in road signs. It also allows you to emphasize words to make it even more noticable.

Yes! I understand that all lowercase can look visually appealing, so maybe when creating spaces or folders or lists there can be an option for the allowable formatting of tags. I personally deal with a lot of product families and part numbers. Some part numbers have multiple tasks associated with them, but I don't think it would make sense to create a new folder for every part number that comes up. This seems like the perfect use-case for tags. The problem is our part numbers can be confusing and they don't contain lowercase numbers. It's somewhat difficult to quickly read the part numbers when they have lower case letters in them. This is why I'd like the ability to use uppercase in tags.

This would allow for camelCase - yes!!!!

I would love this as well - should be able to have a tag appear as "XXXX" or "Xxxx" in addition to the current "xxxx" default. It would be a big help visually!

I also agree about the color scheme and contrast customization options.