1. Customize the prompt text to yellow. 

2.Customize the prompt background to green. 

3. Customize the prompt text to yellow, but terminal emulator text to purple. 

4. Customize the prompt with current time (light green), one $ symbol, username (light blue) and one @ symbol, but terminal back to normal.

5. Customize the prompt with username (brown), one $, date (background green), one @, hostname (background light gray), one @, number command entered during current session (light green text), but terminal back to normal.

6. Customize the prompt with username (red), one $, date (green background), one $, current time in 24 hour minute second format (purple), one @, current working directory (brown background), and back to white color to terminal emulator text.