src/vs/workbench/contrib/welcomeGettingStarted/browser/gettingStarted.ts/GettingStartedPage/updateMediaSourceForColorMode
class GettingStartedPage:	private updateMediaSourceForColorMode(element: HTMLImageElement, sources: { hcDark: URI; hcLight: URI; dark: URI; light: URI }) {
		const themeType = this.themeService.getColorTheme().type;
		const src = sources[themeType].toString(true).replace(/ /g, '%20');
		element.srcset = src.toLowerCase().endsWith('.svg') ? src : (src + ' 1.5x');
	}