How to set up a context-aware Terminal in Mac OS X

Question

Is it possible to set the theme of the OS X Terminal depending on what you are doing? I would like to have visual cues to avoid making mistakes.

For example,

• "pro" theme as default
• "blue" if you are connected to another server via SSH
• "red" if you have root rights
• et cetera

Answer 1

You can do what I suggest in this answer and programmatically change the themes of Terminal. Combine with shell aliases, scripts or functions that wrap calls to e.g. ssh to have automated theme changes.

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You can also configure themes to execute specific commands when they're launched, so you get an "SSH Theme" executing ssh, a "root theme" that automatically runs sudo bash or something similar.