Don't set the background color when initializing with transparency #6091

Job	Run time
Check formatting	12s
Check for typos	5s
Run cargo-deny on Android	20s
Run cargo-deny on iOS	22s
Test stable Windows 64bit MSVC	2m 44s
Run cargo-deny on Linux	24s
Test stable Windows 32bit MSVC	2m 15s
Run cargo-deny on macOS	21s
Test stable Windows 64bit GNU	2m 13s
Run cargo-deny on Redox OS	21s
Test stable Windows 32bit GNU	2m 6s
Run cargo-deny on web	26s
Test stable Linux 32bit	2m 3s
Run cargo-deny on Windows	25s
Test stable Linux 64bit	1m 46s
Test stable X11	1m 36s
Test stable Wayland	1m 37s
Test stable Android	1m 0s
Test stable Redox OS	19s
Test stable macOS	48s
Test stable iOS x86_64	41s
Test stable iOS Aarch64	44s
Test stable web	59s
Test nightly Windows 64bit MSVC	1m 33s
Test nightly Windows 32bit MSVC	1m 39s
Test nightly Windows 64bit GNU	1m 54s
Test nightly Windows 32bit GNU	2m 12s
Test nightly Linux 32bit	1m 47s
Test nightly Linux 64bit	1m 44s
Test nightly X11	1m 37s
Test nightly Wayland	1m 40s
Test nightly Android	1m 13s
Test nightly Redox OS	24s
Test nightly macOS	49s
Test nightly iOS x86_64	45s
Test nightly iOS Aarch64	45s
Test nightly web	1m 2s
Test 1.70.0 Windows 64bit MSVC	54s
Test 1.70.0 Windows 32bit MSVC	1m 7s
Test 1.70.0 Windows 64bit GNU	1m 11s
Test 1.70.0 Windows 32bit GNU	1m 3s
Test 1.70.0 Linux 32bit	1m 22s
Test 1.70.0 Linux 64bit	1m 0s
Test 1.70.0 X11	49s
Test 1.70.0 Wayland	51s
Test 1.70.0 Redox OS	23s
Test 1.70.0 macOS	32s
Test 1.70.0 iOS x86_64	31s
Test 1.70.0 iOS Aarch64	27s
Test 1.70.0 web	39s
Test 1.70.0 Android	44s
Test nightly web Atomic	1m 9s
	55m 33s

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