These are properties to make our items/blocks work with complimentary shaders,
due to their licensing I can't simply compile a custom version of their shaders
so in the case someone who knows what they are doing appears to see this you can
simply unzip the shaders and copy and paste these properties files into the shaders itself
(this should replace the current ones in there)

Place the "blockEntityIPBR.glsl" in "shaders\lib\materials\materialHandling" and overwrite the one there
Place the "blocklightColors.glsl" in "shaders\lib\colors" and overwrite the one there
Place "block.properties" and "item.properties" in the shaders folder overwriting the existing ones

(For currrent versioning of 5.7.1)

Oh and that other .txt is my shader settings, they aren't required for this to work
they are just there for my convienence, if you want to use it though just copy the file
into your shaderpacks folder.

Disclaimer - most of this code isn't mine only the parts for the Kiln is.