I\'m using a dark theme in IntelliJ 14, the problem is that I have difficulties in distinguish the active tab, because its header\'s background is not different than the oth
Although, if you are still using IntelliJ 14:
Under
File \ Settings \ Appearance & Behavior \ File Colors,turn off "Use in Editor Tabs", as test tabs background are dark-green by default, which is similar to the dark-grey non-selected tabs.
After that, optionally you can set the colors under:
File \ Settings \ Editor \ Colors & Fonts \ File Statusand change the Foreground color of "Modified" status.
Now it will highlight the modified files (in version control).