Filter: Color Sampler.

Color Sampler provides an excellent way of sampling an image at a specified point, and getting the color value that's there. While this tool does require expressions to be used, it only requires the simplest of ones. If you can use the Pickwhip then you can use Color Sampler. It's that easy!

How the Sampler works.

With Color Sampler, you can sample the color of an image or piece of footage, and then use that sample to set the color of another rendered element.

You can also use the RGB values to control other parameters such as scale or rotation. Color Sampler can detect RGB color values as well as the strength of an alpha from a user-defined source area.

The source footage's dark areas are tied to the Opacity and Scale of the crosshairs via expressions [play]