I think that this game could benefit from a Pulverizing machine.
Some recipes could be bark from trunks,
stone or rock to gravel,
gravel to sand,
more leaves from shovel harvested plants at the cost of spark,
higher tier power and spark recipes could turn raw ores and gems into powdered forms as a doubling mechanism, finalizing in the compressor or furnace accordingly.
Could also function at a disposal for unwanted blocks and items, maybe giving some form of reusable material like scrap.
Edit: the Stone to gravel to sand has an added benefit of letting the players use more of the color palette you gave us. The benefit being that any stone color would also be available as gravel and sand. Additionally, that sand crafted with some grass seeds could lead to dirt, and that dirt crafted with a bucket of water could be mud
Edit #2: the disposal part doesn’t actually make sense for the UI design, maybe this machine would function more like the centraforge, maybe the machine runs on scrap and that’s how it pulverizes things. And the more scrap content it has, the more effective the process is.