Board Thread:Questions and Answers/@comment-24071602-20150109005035/@comment-27723099-20150427202645

Some of the textures are not loaded from MC but directly from the mod file. They can't be odified without modifying the mod file itself.

For example the map based world generation: The map in the LOTR menu is based on the MC resource and will show maps from resource packs too, but the world generation is based on the map file in the mod file and will not be affected by resource packs.