First, I am going to assume that you are a teacher using Canvas and that you want to make your modules section look better.
There are some ways that you can use to break up the way the modules look; However, I have no idea how these methods look in the various platforms that students can use to view Canvas. LaTex can be used in the names to add some color and formatting (although here recently I have run into some issues with it that I am still trying to figure out). You can also add icons to the names of items in your module - there have been posts on this matter, and unfortunately, I do not have a list of them or have the information contained in them. You can search the forum for both LaTex and icons and probably come across them.
Just keep in mind that if you add icons or LaTex, that what you see on a computer may not be what the students see at all on other devices.