Refactor TrueColorSample #1336

Job	Run time
ruff	8s
sdist	56s
mypy	25s
parse_sdl (macos-latest, 3.2.16)	26s
parse_sdl (windows-latest, 3.2.16)	1m 0s
test-docs	2m 2s
tox (ubuntu-latest)	14m 2s
build-macos (pp310-*)	4m 41s
build-macos (cp310-*_universal2)	2m 36s
linux-wheels (x86_64, cp310-manylinux*)	4m 4s
pyodide	2m 54s
build (ubuntu-latest, pypy-3.10, x64)	2m 47s
linux-wheels (x86_64, pp310-manylinux*)	3m 42s
linux-wheels (aarch64, pp310-manylinux*)	3m 29s
build (windows-latest, 3.10, x86)	3m 44s
build (windows-latest, 3.10, x64)	2m 54s
build (ubuntu-latest, 3.10, x64)	15m 1s
build (windows-latest, pypy-3.10, x64)	4m 4s
linux-wheels (aarch64, cp310-manylinux*)	4m 7s
publish	0s
ruff	8s
build-macos (pp310-*)	4m 41s
mypy	25s
build (ubuntu-latest, pypy-3.10, x64)	2m 47s
pyodide	2m 54s
parse_sdl (macos-latest, 3.2.16)	26s
build (windows-latest, 3.10, x64)	2m 54s
linux-wheels (x86_64, cp310-manylinux*)	4m 4s
build (ubuntu-latest, 3.10, x64)	4m 17s
test-docs	2m 2s
linux-wheels (x86_64, pp310-manylinux*)	3m 42s
tox (ubuntu-latest)	14m 2s
linux-wheels (aarch64, cp310-manylinux*)	4m 7s
build (windows-latest, pypy-3.10, x64)	4m 4s
linux-wheels (aarch64, pp310-manylinux*)	3m 29s
build (windows-latest, 3.10, x86)	3m 44s
parse_sdl (windows-latest, 3.2.16)	1m 0s
build-macos (cp310-*_universal2)	2m 36s
sdist	56s
publish	0s
	2h 15m 20s

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