Many liquids (such as Tinker's molten metals) can't be used due to the way they're set up (special? the bucket names are messed up for me, may be using an old version) and render in monochrome. Thaumcraft's Liquid Death is also greyscale rather than purple, and Purifying Fluid renders as default water.

Reported By: Nnystyxx - http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2576750-chisels-bits-flat-colored-blocks?comment=195

Missing handling for IFluidContainerItem, also my extraction handling is backwards, buckets should pull, tanks shouldn't push.

Confirmed missing colors on fluids as well.

Will probably try to resolve this tomorrow.