crates/canvas/src/editor.rs   | 146 +++++++++++
 crates/canvas/src/gpu/page.rs | 106 +++++++-
 crates/snowbound/src/main.rs  | 448 ++++++++++++++++++++++++++------
 tools/canvas/README.md        |   4 +-
 4 files changed, 612 insertions(+), 92 deletions(-)