History of Sky::instances 3 changes

In crates/backdrop/src/sky.rs, lines 494–511 on a0a1601eb5a532d59ffadb89cbe957a7459cca6c44707a8d60aa4e63698b43e9. 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 494,511:crates/backdrop/src/sky.rs.