src/vs/workbench/services/themes/common/themeConfiguration.ts/ThemeConfiguration/experimentalSemanticTokenColorCustomizations
class ThemeConfiguration:	public get experimentalSemanticTokenColorCustomizations(): IExperimentalSemanticTokenColorCustomizations | undefined {
		return this.configurationService.getValue<IExperimentalSemanticTokenColorCustomizations>(ThemeSettings.TOKEN_COLOR_CUSTOMIZATIONS_EXPERIMENTAL);
	}