You can quickly switch between various color schemes, keyboard layouts, and look-and-feels without actually invoking the corresponding page of the Preferences dialog box.
- Choose on the main menu or press ⌃`⌃`⌃`^ Back Quote^ Back Quote.
- In the pop-up window that opens select the desired scheme (Colors and Fonts, Code Style, etc.).

- In the suggestion list, click the desired option.
