In a normal editor view, when you click on a { (on a for, if, ... line) you can see that this { and the corresponding } are both colored in blue.
If you split the editor view vertically (or horizontally) the couple of { } is not colorized in the second view. It could be nice to have the same colorization duplicated in both views (as it is for example for the name of a variable which is effectively colored in both windows.
Easier to verify { } correct coupling on long if/for/... blocks.
This is also the case for couples of ( ) or [].