History of mix 1 change

In crates/backdrop/src/sky.rs, lines 557–560 on 15d3f6f7871b9ba24296599a30f4188cde40d8831dff7bdaad16c717bfadd9f4. 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 557,560:crates/backdrop/src/sky.rs.