Use `palette` and `Color` from top level Xilem and Masonry (#800) #2480

Job	Run time
formatting	34s
Prime LFS Cache	7s
cargo check (msrv) (wasm32)	21s
cargo check (msrv) (windows-latest)	1m 49s
cargo check (aarch64-android)	20s
cargo check (msrv) (macos-latest)	41s
cargo clippy (windows-latest)	5m 19s
cargo clippy (wasm32)	2m 3s
cargo check (msrv) (ubuntu-latest)	39s
cargo clippy (macos-latest)	2m 3s
cargo test (wasm32)	20s
cargo clippy (ubuntu-latest)	3m 20s
typos	5s
cargo doc	39s
cargo test (windows-latest)	3m 12s
cargo test (macos-latest)	1m 27s
cargo test (ubuntu-latest)	2m 54s
	25m 53s

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