Change Appearance preferences

In the CotEditor app on your Mac, use Apperance preferences to choose the appearance of documents, such as font, line height, and the colors. To change these preferences, choose CotEditor > Preferences, then click Appearance.

OptionDescription
Font The font and font size for the editor. To change the font or font size, click Select, then choose a different font or font size.
Anti-aliasing Display text in the editor anti-aliased. Anti-aliasing is a rendaring feature that smoothes jagged edges.
Ligatures Apply the standard ligature rules to the editor's text, or disable all ligatures. A ligature is a typographic feature joining specific characters as a single glyph.
Line height Line height with a value indicating the number of lines. The range must be from 0.1 to 10.0.
Change background color Highlight the lines in which cursors exist with another background color. The “Current Line” color in the selected theme will be used for this highlight.
Cursor The style of the cursor in the editor.
Show invisible characters Transform invisible characters — such as line endings, whitespaces, or control characters — into alternative symbols in order to make them viewable. See Displaying invisible characters for about the available types of invisible characters.
Show indent guides Draw guides for each indent width in the indent parts of the document.
Appearance Choose the document window appearance regardless of the system appearance state.
Theme Choose your default coloring theme for the editor, and manage the themes. See About theme for about theme customization.
Theme list Choose your default theme for the text view.
Add +, Remove - Create a new theme or remove the selected theme. The themes bundled with CotEditor can not be removed.
Other Actions (gear)
Duplicate
Duplicate the selected theme in order to make your own one.
Restore
Restore the selected theme to default. This action is available only for bundled themes.
Export
Export the theme file made from the selected theme. With exported files, custom coloring themes can be used on another computer. To use the exported file, do Import.
Share
Share the theme file made from the selected theme.
Import
This allows you to use a theme created on another computer. After selecting Import, choose the theme file to import.
Theme editor Edit the selected theme. Click the color wells to choose colors.
Basic
Basic text coloring other than syntax highlighting. If “Use system color” check box for the “Selection” is turned on, the user setting in the System Preferences > General > Highlight Color is used for the selection highlighting.
Syntax
The text colors for syntax highlighting. Turn on the “Enable syntax highlighting” optoin in the Format preferences to apply these colors to documents.

See also