src/vs/workbench/contrib/welcomeGettingStarted/browser/gettingStarted.ts/GettingStartedPage/getWalkthroughCompletionStats
class GettingStartedPage:	private getWalkthroughCompletionStats(walkthrough: IResolvedWalkthrough): { stepsComplete: number; stepsTotal: number } {
		const activeSteps = walkthrough.steps.filter(s => this.contextService.contextMatchesRules(s.when));
		return {
			stepsComplete: activeSteps.filter(s => s.done).length,
			stepsTotal: activeSteps.length,
		};
	}