CocoaLumberjack works by default in AppCode, but colours are not supported out of the box. To enable colours:
- Install the 'Grep Console' plugin (http://plugins.jetbrains.com/plugin/7125)
- Enable ANSI colouring (Settings > Grep Console)
- Go to Run > Edit configurations...
- Add TERM=color to the 'Environment variables' (edit them by clicking on the ellipsis)
[[DDTTYLogger sharedInstance] setColorsEnabled:YES];
Kudos to @davidlawson for this documentation.