History of Ripples::new 2 changes

In crates/backdrop/src/ripples.rs, lines 50–98 on 9a777fec4ed9b8ffdd115cbfc4537d1b0caa63a602c7fe17eef7d99ac601ca27. 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.