What type reads over a photo on a sunny terrace?

What reads is dark, plain type, off the light area of the photo, at a size that does not ask for zoom. The price in white on the dish does not read at midday. Take the phone onto the terrace at the brightest hour and read the price without covering the screen. On a Madrid midday the figure is set in white on the pale sauce and disappears. The price sits in dark type, in the margin of the photo, readable at that hour.