You're welcome!

So Damn useful !thank you so much for creating this

Try using the Common Ground mod. Basically, it allows you to render the terrain in the editor the same way the game renders unlocked squares in-game. I use it in the map editor and I always have it on, so I didn't think that it would cause this problem. If that fixes the issue I'll update the description

Ah I see that. The samples do not show up in the theme editor for me however. Strange.

Both of these are there, as you can see in the third screenshot

You should have added gravel and pavement samples ect. Thanks though.

Thank you!

Very useful.
Thanks for sharing this map!

Ah, I only play in the editors so I've never used these mods and I'm not up to date with them. I just tried these and growables disappear anyways, so either I'm doing something wrong or these mods aren't meant to work in the theme editor.

Good Idea. But as Info: Plop the Growables IS superseded since ages by RICO revisited and Advanced Building Level Control.