I don't know if this would be difficult to do, but now that there are so many path choices, would it be possible to add a way to "upgrade" them to different appearances. Say for instance, you made stone paths, but have since unlocked the pink marble path. Rather than having to delete the paths and then build new ones, being able do it the same way you do upgrades, and choose the type you want to upgrade to.
Maybe you could set it up where you click the option to upgrade all roads, and then have a drop down for the type of road you want. That would let users upgrade 2 or 3 levels at once.
I have considered that. I will see what it will take in the engine to change it
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