Go into the settings and find the "Accessibility tab" and go to "Colour blind filter" and then click the filter "Protanopia"

Under the same section there will be an option to change the UI settings, change this to pink as you wish.

This is what I use
Note: Some colours may be different due to the colour blind filter

The end result will look something like this, enjoy your cute pink game!!

A little bonus for the girls, here's my crosshair settings for mercy's staff ♥