Switch profile of current Terminal
Solution 1:
You can change the profile of an active window by doing the following:
- Right click in the open space of the Terminal window (or cmd+I)
- Choose "Show Inspector"
- Click on the "Settings" header in the Inspector window
- Choose a new profile for the current window
EDIT:
In macOS 10.14.6 the Terminal.app Inspector profile-selection list looks like this: