Left panel: sample 1k × 1k region showing the locations of injected microlensing events (black dots) and detected variables (colored circles) using a Gaussian kernel with σ = 2.0 in the temporal direction and σ = 1.0 in each of the spatial directions. The color scale indicates the time of maximum in the detection-kernel-convolved image stack. The peak magnification of the injected events was at time 144 on this scale. Right panel: overall recovery rate of injected microlensing events by magnitude and u₀.