THIS IS AN ALTERED VERSION OF TEdit!
The 'official' TEdit is here: https://github.com/TEdit/Terraria-Map-Editor/releases
This version replaces the 'Replace All'plugin with a 'Randomize all Tiles' one instead;
The plugin essentially changes the world's 'tile palette'.
In short, it automates the world process found in this video here:
https://www.youtube.com/watch?v=jdv0vSMcSoE&ab_channel=WandofSparking
#Original README:
TEdit - Terraria Map Editor is a stand alone, open source map editor for Terraria. It lets you edit maps just like (almost) paint!
TEdit 4 now supports Terraria Journey's End.