X11 Preferences, Application Menu, and Dock Menu
You can also customize your X11 environment by setting X11’s preferences via the X11→ Preferences window (
-,) and adding programs to its Application menu. X11’s preferences are organized into two categories: Input and Output. The X11 preferences have the following options:
Input
The following options are used for controlling how X11 interacts with input devices:
- Emulate three-button mouse
Determines whether Option-click and
-click mimic the middle and right buttons.- Use the system keyboard layout
Allows input menu changes to overwrite the current X11 keymap.
- Enable keyboard shortcuts under X11
Enabled menu bar key equivalents, which may interfere with X11 applications that use the Meta modifier.
By default, all three of these options are enabled.
Output
The following options are used for configuring X11’s look and feel:
- Colors
This pop-up menu offers the following options:
From Display
256 Colors
Thousands
Millions
By default, the Color pop-up is set to “From Display”; if you change this setting to something else, you will need to relaunch X11 for the change to take effect.
- Enable the Enter Full Screen Menu
This option is unchecked by default. When unchecked, X11 runs in rootless mode, which means that X11 windows can reside side-by-side with Aqua windows. ...
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