arc/platforms.md                                |   9 +-
 arc/ui.md                                       |   3 +-
 crates/snowbound/assets/icons/styles.svg        |   8 +-
 crates/snowbound/src/aqua.rs                    |   5 +-
 crates/snowbound/src/macos.rs                   |  32 +-
 crates/snowbound/src/main.rs                    | 503 +++++++++++++++++++-------------
 crates/snowbound/src/screenshot/snow_leopard.rs |   2 +-
 crates/snowbound/src/sidebar.rs                 | 131 ++++++---
 crates/snowbound/src/windows.rs                 |   2 +-
 crates/snowbound/tests/replay.rs                |   2 +-
 crates/ui/src/layout.rs                         |  35 ++-
 crates/ui/src/lib.rs                            |   3 +-
 crates/ui/src/shell.rs                          |  44 +++
 crates/ui/src/tests.rs                          |  73 +++++
 14 files changed, 561 insertions(+), 291 deletions(-)