The Approve button included in customer notifications is very difficult to read -blue font on green button.   The button should be changed to have white text, like all the blue buttons in JSM.  Or have a lighter background.  It is not possible to style this button.  However this request is not to customize, but to fix an issue with how it is currently presented.

The Approve button automatically included in customer notifications does not follow ADA (American Disability Act) recommendations to account for people with disability of color blindness.  The documentation we follow says to avoid combining:
Red and Green
Brown and Green
Purple and Blue
Blue and Green
Yellow and Light Green
Grey and Blue
Grey and Green
Black and Green