src/vs/workbench/contrib/welcomeWalkthrough/browser/walkThroughPart.ts/WalkThroughPart/updateSizeClasses
class WalkThroughPart:	private updateSizeClasses() {
		const innerContent = this.content.firstElementChild;
		if (this.size && innerContent) {
			const classList = innerContent.classList;
			classList[this.size.height <= 685 ? 'add' : 'remove']('max-height-685px');
		}
	}