This image in this blog post is a good example. The examiner has written in blue and red on this document. The blue is the claim made by the pensioner and the red is the response.
It would have taken a little doing to figure this out with just a black and white scan. The handwriting in this case was done by the same person, the "color clues" would not have been noticed on a non-color scan.
|"Story of Claim" 19 January 1900, Leander Butler, Union Civil War pension based upon service of Leander Butler in Company B, 10th Kansas Infantry, National Archives and Records Service.|
To be honest, this document is not crucial to my research on Leander Butler.
But if it had been....