Cupertino: button colors for Primary and secondary buttons

[szecket]

The color assignment for secondary (press) state for buttons and the button colors for dark mode and primary were a bit confused.
I have adjusted them according to OS observed and figma colors where I could find them

[ogoffart]

This changes the color of all controls in the cupertino style, is that expected and is that according to the official mac guidelines?

(Also patches like this are hard to read because of the formatting changes intermixed)

[szecket]

yes. and yes.
I changed one actual color - the accent color which was not the color on the mac.
I changed the assignment of some of the colors assigned to button and button primary background to match the spec from figma and where not available from the mac and sampling color from the ui. but I'll double check the implementation in gallery of the original pre-PR before pushing anything anyway