How do I control the color theme for each messaging box?

[anguilla1980]

On my 640 dual sim, Windows is assigning each messaging app for each sim it's own colour theme. For example, my sim 1 messaging colour is blue (to match my overall theme colour), but the theme for the other sim is magenta, ACK!

How do I control what colour the OS is setting for each messaging app?

Thanks!

 

[anguilla1980]

Still can't figure out how to do this lol.

 

[anon(3463402)]

I don't think it's possible but I've linked them anyway.