“…Images in your grant applications, [such] as photographs and other visuals appear to make new information easier to understand (Mayer 2008), more credible (Fenn et al. 2013), and more memorable (Sargent 2007).”

This article by Letita Henville in University Affairs offers tips on effective use of coloured images.

photo credit: verchmarco Colorful pens on display (Flip 2019) via photopin (license)