Preferences and appearance
==========================

Edit → Preferences (the application menu on macOS)
opens the settings dialog. You can leave almost
everything in it alone -- the defaults are the
configuration the rest of this chapter describes -- but
a few categories are worth knowing about.

Interface and themes
--------------------

The Environment → Interface page selects the theme. The
IDE ships with dark (the default) and light themes, and
the editor's syntax colours follow the theme
automatically. The same page holds the user-interface
language and display-scaling options.

Day-to-day layout lives outside the dialog. Each bottom
pane -- the serial terminal, the search results -- has
a toggle button in the status bar; the side panes
collapse when you drag their splitters shut and reopen
from the drawer arrows at the window edges; and the
Window menu's Full Screen (``Ctrl+Shift+F11``) gives a
demo or a wall-mounted monitor the whole screen.

Text editor settings
--------------------

The Text Editor category controls the editing surface:
*Font* for typeface and size; *Display* for line
numbers, whitespace visualization, and text wrapping;
*Behavior* for indentation -- tab width, spaces versus
tabs -- and automatic whitespace cleanup. You can also
change the font size on the fly with ``Ctrl++`` /
``Ctrl+-`` / ``Ctrl+0``, or with the mouse wheel while
holding ``Ctrl``.

Keyboard shortcuts are fixed in OpenMV IDE. Each one is
shown beside its menu entry, and this chapter quotes
the important ones where the feature comes up.

Other categories
----------------

The Python and Copilot categories configure the
:doc:`editor's <editor>` language intelligence -- the
bundled Python language server and the optional GitHub
Copilot sign-in. The remaining categories belong to the
Qt Creator core and rarely need attention.