src/vs/editor/browser/viewParts/overviewRuler/decorationsOverviewRuler.ts/DecorationsOverviewRuler/onDecorationsChanged
class DecorationsOverviewRuler:	public override onDecorationsChanged(e: viewEvents.ViewDecorationsChangedEvent): boolean {
		if (e.affectsOverviewRuler) {
			return true;
		}
		return false;
	}