Change color coding

Previously, when setting up document for signature, the first signatory fields were in blue and the second signatory was in a red/pink color. However last year it changed and now the first signatory is light blue and the second one is light green. They look very similar and are difficult to tell apart without zooming into 400%. Is there any way to change the default colors so that there is greater contrast between the 1st/2nd/3rd signatory? If I cannot change it, then can you please put in a feature request for your developers to change this back to the old color scheme? Color 1 and color 2 should have much higher contrast