REALLY useful feature

I’m doing an HTML 5 version of a card game(see spoiler if you’re interested in what this game is) in Game Develop at the moment as one of my main projects. I’ve noticed during this project and can forsee in future big projects this summer, that highlighting code modified since the last save would be really useful. Code::Blocks offers this feature and it’s really useful.

There could just be a red highlight or something where currently the function number appears on the left. It would be really really useful.

[spoiler] … 24486?mt=8[/spoiler]