Quick-fire questions
Why won’t Messages send texts as an alternative?
> Although you can enable Messages to send texts using SMS when iMessage isn’t available, that can incur a cost from your mobile provider, so is turned off by default. Enable it in Settings > Messages >
‘Send as SMS’ if you like, as that won’t change anything when iMessage can be used instead.
How to make interface colours more distinct?
> If you have some red-green problems or protanopia, try turning on Differentiate Without
Colour in Settings > Accessibility > Display & Text Size to improve the appearance of interface controls. You could also try setting one of the Colour Filters there, although they’re more complicated to adjust for best effect.