Text too pale and not dark enough


I have just purchased the new Note.
I am using the email app. The text in the emails is very faint and light grey. Is there some way to increase the darkness of this as it is almost unreadable.
The same thing happens with reading magazines on Google News app.
It can be adjust in pdf files but not anything else.


In Apps, if you Long Press an application you can click Optimize to change the viewing experience.