Thank you both! After reading your post I went and did some research to understand them more. In the process, I snapped a few more photos of a leaf that shows signs of an aphid attach/infestation.
A good Aphid description:
The leaf that shows the discoloring and damage:
A closer view and one converted to infrared...sometimes and can show the damage a little better.
The aphids on the underside of the leaf:
A very close shot of the leaf damage:
Thank you all.