Fix disabled slider highlighting #6

Job	Run time
📊 Static checks / Code style, file formatting, and docs	4m 13s
🤖 Android / Template (target=template_release)	38m 24s
🍏 iOS / Template (target=template_release)	23m 12s
🍎 macOS / Editor (target=editor, tests=yes)	40m 42s
🍎 macOS / Template (target=template_release)	30m 11s
🐧 Linux / Editor w/ Mono (target=editor)	1h 9m 21s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	1h 0m 9s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	40m 36s
🐧 Linux / Template w/ Mono (target=template_release)	34m 19s
🐧 Linux / Minimal template (target=template_release, everything disabled)	20m 20s
🌐 Web / Template (target=template_release)	32m 39s
🏁 Windows / Editor (target=editor, tests=yes)	1h 51m 26s
🏁 Windows / Template (target=template_release)	56m 17s
	9h 21m 49s

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