Test

Use premultiplied alpha for renderer clearColor (#3347) #8972

Job	Run time
test	2m 32s
alejandra	36s
prettier	35s
typos	33s
build-linux-libghostty	55s
build (namespace-profile-ghostty-md, aarch64-linux)	51s
build (namespace-profile-ghostty-md, x86_64-linux)	58s
build (namespace-profile-ghostty-md, x86-windows-gnu)	59s
build-bench	54s
build (namespace-profile-ghostty-md, x86_64-windows-gnu)	52s
build-macos	4m 19s
build-nix (namespace-profile-ghostty-md)	2m 17s
build-nix (namespace-profile-ghostty-md-arm64)	4m 57s
build-macos-matrix	11m 3s
build-windows	7m 28s
GTK adwaita=true x11=true	56s
GTK adwaita=true x11=false	56s
test-macos	2m 53s
GTK adwaita=false x11=true	56s
GTK adwaita=false x11=false	57s
	46m 27s

Provide feedback