clear color framebuffer #416

Job	Run time
ios	1m 23s
android	5m 28s
macosx	3m 28s
linux - debian:bullseye	2m 5s
linux - arm32v7/debian:bullseye	14m 43s
msvs	2m 50s
msys2 - mingw32	2m 39s
linux - arm64v8/debian:bullseye	2m 56s
sanitizer - debian:bookworm	1m 59s
msys2 - mingw64	2m 39s
linux - debian:bookworm	1m 52s
sanitizer - arm32v7/debian:bookworm	14m 32s
linux - arm32v7/debian:bookworm	14m 33s
sanitizer - arm64v8/debian:bookworm	2m 48s
linux - arm64v8/debian:bookworm	2m 54s
linux - ubuntu:jammy	1m 28s
linux - igagis/raspbian:bullseye	8m 17s
linux - igagis/raspbian:bookworm	10m 16s
	1h 36m 50s

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