Window Layout
–Hide system window titlebar checkbox.
–Auto hide tab bar checkbox: hide the tab bar when only one tab is open.
Fonts & Colors
–Default font list: select the font to be used in the application.
–Size list: select the text size for emails in the application.
–Advanced button: customize additional font options.
–Colors button: configure additional color options for text, background, and links.
Plain Text Messages
–Display emoticons as graphics checkbox.
–Style list: select the text style for quotes in plain text messages.
–Size list: select the text size for quotes in plain text messages.
–Color button: select the color for quotes in plain text messages.
Date and Time Formatting
–Application locale switch.
–Regional settings locale switch.
Language
–A list for selecting languages for the application's menus, messages, and notifications, and setting language priorities.
Scrolling
–Use autoscrolling checkbox.
–Use smooth scrolling checkbox.