Sulfur Blocks
https://gist.github.com/Vyraal1/46fa7a1b8c5a6ad6cd3b44541a467b43

Other misc CoT scripts
https://gist.github.com/Vyraal1/579cb4d73aa192d59b521250c8fe9533
https://gist.github.com/Vyraal1/cf5701c1be660c6272bea765032d0b35

material_parts_contenttweaker.json
https://gist.github.com/Vyraal1/007ed788c33c3bb95c67a535fb3497d4

material_part_contenttweaker-original.json
https://gist.github.com/Vyraal1/2d630f025ffa9b12287b46aad30961c9

saved_sub_blocks_contenttweaker.json
https://gist.github.com/Vyraal1/39170cf698151476c487b74cda910b08

saved_sub_blocks_contenttweaker.json-original
https://gist.github.com/Vyraal1/d9048340d3598ec2602f7c10e282594d

BASE 3.5.0 SNAPSHOT 101
ContentTweaker 4.3.0 - SNAPSHOT 61

The textures in my hotbar don't match when I actually right click and place the block in the world. Also the drops set in the first script (thermal expansion sulfur) doesn't actually drop when I break the block.

https://imgur.com/a/bX34O So using the latest snapshot seems to have fixed the block drops of the normal sulfur ore, but the netherrack variant drops nothing still. Not sure if I had to set that as well.