Daniel, I like what you do, and I wonder if you could reduce the level of fine details (number of colours, number of fine lines) in the logos. calcite-proposed.svg definitely looks better than the current logo. proposal2 is somewhat comparable to the current logo (since proposal2 uses colors and/or fine lines, and it makes logo barely recognizable at the small scale).
I wonder if we could depict something around https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSqqD3dy8BmMeEUJQaeOYTp_4Bdvq-2Xz_EXCqIXVMQjmfK5QJbSA or https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSEqCuAxcDMtlvCKEiGftOSxZq-3dNN7knuOHerpj39g2IIYqdg I mean to end up in a couple of simple graphical primitives. PS. I wish I could draw. Vladimir