History of Sky::label 2 changes

In crates/backdrop/src/sky.rs, lines 543–554 on f59e9680d880b1abc8c0b3ac7efb316c71d0001936e45fae4decc1f4a9829f47. 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 543,554:crates/backdrop/src/sky.rs.