History of Colour::of 1 change

In crates/hub/src/diffusion.rs, lines 268–280 on c65b0f0a196f46443ebe9ac11f160486341ecce53a9e1a79100321e55dec566a. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 268,280:crates/hub/src/diffusion.rs.