History of Sky::label 2 changes

In crates/backdrop/src/sky.rs, lines 543–554 on 119fd17d213f23e85f97bae161e490a8bcd9ed22b75c1374c58063a24fa6f670. 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.