While I am writing this, I know that there is some customization with the waypoints mod, but I believe that the feature could be a little better, in my opinion. Some things, like a filling on the block that is highlighted instead of an outline of the block as a waypoint or not being able to see through blocks and show that they are still highlighted. While I know that someone will most likely say I could just take off the boxes, it helps me while mining to know what block it is that I'm going to mine, and it is quite a useful feature for mining routes such as this one. The issue with seeing through the blocks is it's hard to know where I'm going to teleport since it's such a small space to teleport to, and it takes quite a chunk of the screen and blocks surrounding the area with a blue highlight unlike skytils which hides it behind another block and once near that block or high enough you can see its still highlighted.
In short, some things I'd like to be added are a full colord waypoint of the block, not being able to see through other blocks and see that it's still highligted (granite, I think it's called) and maybe a feature to remove the [5m] thing in the waypoint as an option.
(getting screenshots real quick once second)