5.3.1 Superhero primary color

Primary color was changed from #4c9be8 (blue) to #df6919 (orange) in the light theme.

To me this makes the light theme very aggressive and does not really work with some other colors:

Can the old light theme primary color please be brought back?

P.S.: To me this change basically means i can not upgrade, because all documentation has the blue colors in screenshots and users will nag about the changes.