What do the different colours mean on iphone se menus - where are they explained?

I have tried to view the manual but can not find out

Red, Green , Blue, Cyan must all have a system wide meaning but I can not find it. Even when I 'go into' a red menu item it still stays red after I exit, so it does not mean important/urgent but it must mean something I assume,

and what happens to the red/green colour blind problem (10% of males)- how can I change the colours for that ?

Good heavens - you are implying that each app has different meanings in menus for the colour they use, there is no standard on an apple phones!

If that is the case I will assume they are just trying to make things pretty and not help the users - pure frustration in buying an inconsistent interface - as you guess I am unimpressed with the MMI

Thank you for your concern in replying

Thank you , but there is no search faculty on the web page in chrome and it is not possible to download a PC version of the manual.

There is little point in me trying to read it on an iphone when I do not know how to use the phone!!

Hope this will help

'menus' to me are things that react when you prod them - ie active hotspots

this is a multicoloured example...

Thank you - I should have been able to find this in the manual, but it is not searchable on my PC as we can not download it!

and here is mine!

Thanks for the suggestion - so I tried the MicrosoftEdge browser which gave the same results

I even tried it from the iphone and again there is no search areas next to the manual

I am DOOMED !!