Your suggestion makes a lot of sense, I think I'll add 0.5 transparency to the cube the player is dragging when it can be combined with the cube under it. It's late so I'll do that tomorrow, stay tuned :)
Sorry for the delay, I've been a bit busy recently.
I've just adjusted the highlighting of the cubes, give it a look. For feedback you can contact me here, by email or open an issue on GH. Hope you enjoy!
Your suggestion makes a lot of sense, I think I'll add 0.5 transparency to the cube the player is dragging when it can be combined with the cube under it. It's late so I'll do that tomorrow, stay tuned :)