src/vs/platform/extensionManagement/common/extensionGalleryService.ts/getWebResource
function getWebResource(version: IRawGalleryExtensionVersion): URI | undefined {
	return version.files.some(f => f.assetType.startsWith('Microsoft.VisualStudio.Code.WebResources'))
		? joinPath(URI.parse(version.assetUri), 'Microsoft.VisualStudio.Code.WebResources', 'extension')
		: undefined;
}