IntelliJ IDEA 2018.1 Help


File | Settings | Editor | General | Appearance for Windows and Linux
IntelliJ IDEA | Preferences | Editor | General | Appearance for macOS
Ctrl+Alt+S settings

Use this page to customize the appearance of the Editor.

Caret blinking (ms)Select this checkbox to make the caret blink with the specified period (in milliseconds).
Use block caretSelect this checkbox to have the block caret applied in the Insert mode and the usual caret applied in the Overwrite mode.
Clear this checkbox to have the usual caret applied in the Insert mode and the block caret applied in the Overwrite mode.
Show right margin (configured in Code Style options)Select this checkbox to have a thin vertical line at the right margin of the editor displayed. Refer to the description of the Code Style settings.
Show line numbersSelect this checkbox to have line numbering shown in the left gutter area.
Show method separators Select this checkbox to have thin lines displayed in classes to separate methods from each other and to separate methods from field declarations.
Show whitespacesSelect this checkbox to have IntelliJ IDEA display white spaces or tabs (depending on the Code Style settings).
You can select the following options:
  • Leader - select this checkbox to add white spaces before your code line.
  • Inner - select this checkbox to display white spaces inside the line of your code.
  • Trailing - select this checkbox to display white spaces after the code line.
Show vertical indent guidesSelect this checkbox to have IntelliJ IDEA display vertical lines in the editor to indicate positions of indents and thus facilitate typing, manual formatting, reading, and maintaining code.
Show code lens on scrollbar hoverSelect this checkbox to enable lens mode.
Show breadcrumbsSelect this checkbox to show a breadcrumb trail on top of the editor tab for an HTML or an XML file. Reopen the editor for the changes to take effect.
breadcrumbs xml
Show parameter name hints If the checkbox is selected, the parameter name hints appear in the editor for SQL, Java and Groovy. E.g. the column name hints may be shown for SQL INSERT statements.

Here is how the same statement is shown when this checkbox is not selected.


Click Configure to change the contents of the Blacklist. See Type Hinting in IntelliJ IDEA.

Show CSS color preview icon in gutterSelect this checkbox to show color preview icons for the color values.

See Changing Color Values in Style Sheets.


If this checkbox is not selected, it is still possible to invoke the color picker and change color values, by choosing the Change color intention action.

no icon change color
Show CSS color preview as backgroundIf this checkbox is selected, the background of the color value shows the color preview:
color preview background
Enable XML/HTML tag tree highlightingSelect this checkbox to show the hierarchy of tags highlighted with different colors. If this option is enabled, you can define the following options:
  • Levels to highlight: specify the depth of hierarchy to be highlighted.
  • Opacity: specify brightness of highlighting
tags highlighting

Highlighting is activated when there is more than one tag with the same name in the hierarchy.

Highlight RDoc and ruby in comments

This feature is only supported, when Ruby plugin is installed!

If this checkbox is selected, the keywords are highlighted in comments. Otherwise, they are displayed as plain text.

Changing state of this checkbox takes effect upon IntelliJ IDEA restart only.

Show external annotations inline When this option is enabled, IntelliJ IDEA shows the annotation gutter icon icon in the gutter near the externally annotated code and shows these external annotations in your code.
show external annotations
Show inferred annotations inline Select this checkbox to show inferred annotations in code (in addition to the annotation gutter icon gutter icon).
show inferred annotations
When this option is disabled, only the annotation gutter icon icon in the gutter marks inferred annotations.
Last modified: 24 July 2018

See Also