Emacs has many settings which you can change. Most settings are customizable variables (see Variables), which are also called user options. There is a huge number of customizable variables, controlling numerous aspects of Emacs behavior; the variables documented in this manual are listed in Variable Index. A separate class of settings are the faces, which determine the fonts, colors, and other attributes of text (see Faces).
To browse and alter settings (both variables and faces), type
M-x customize. This creates a customization buffer, which lets you navigate through a logically organized list of settings, edit and set their values, and save them permanently.
|• Customization Groups||How settings are classified.|
|• Browsing Custom||Browsing and searching for settings.|
|• Changing a Variable||How to edit an option’s value and set the option.|
|• Saving Customizations||Saving customizations for future Emacs sessions.|
|• Face Customization||How to edit the attributes of a face.|
|• Specific Customization||Customizing specific settings or groups.|
|• Custom Themes||Collections of customization settings.|
|• Creating Custom Themes||How to create a new custom theme.|