If you do not have the Jumps tab showing on the sidebar, then any functions you create will not get the syntax highlighting until you select the Jumps tab and then click back in to the text editor.
Just an annoyance, but gets more so when you have more than one source code file in the Files tab in the sidebar, you have to go between them all for all of them to be recognised.
Could the Jumps tab be updated when you are working in the text editor when the Jumps tab is not visible?
There was some reason why I did this...
I'll have a look.