How do you use color coded tilemaps

Arcade Help
#1

Could I use a step by step to use this

#2

We have some documentation here: https://arcade.makecode.com/courses/csintro2/tilemap

#3

Is there something you’re trying to build that can’t easily be done with normal tilemaps?

#4

I’m kinda lazy and making a really big chance game but I don’t want the walls for more work so I decided with the code color blocks and the walls on or off.