History of Ripples::new 2 changes

In crates/backdrop/src/ripples.rs, lines 50–98 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 50,98:crates/backdrop/src/ripples.rs.