Some time ago I made the Teamspeak 3 theme called "Sublime", it's derived from a text editor called Sublime Text which is one of the best text editors for development. Look into it if you're interested. More information is on the addons page of Teamspeak 3 itself. Please leave some comments on that website to help me out, a Teamspeak 3 forum account is required though. Click here to download it directly or click here to head to the addons page first. Open it with Teamspeak's Package Installer which should already be configured.