Settings of the Display group of Editor’s options control how Editor displays source code files. The Display settings are organized into the following sections:
Text
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Font name - Lists all fonts installed on your system and specifies the one to use in the Editor. You can quickly preview fonts in the drop-down window by hovering the mouse pointer over the font name in the list.
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Font size - Font size in points.
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Control characters - If this option is enabled, Editor displays spaces, tabs and line breaks using special characters, so that you can distinguish, for instance, a tab from a string of spaces.
Background
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Style - Specifies the background style. You can select one of the four gradient effects or empty background (None). To select the color of the gradient fill, use the Start color and End color controls.
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Start color and End color - Specifies the start and end color for the gradient fill and are used when the Style option is not None.
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Right margin - The right margin is a thin vertical line to specify where your break lines are. This setting defines whether the line is shown in the panel.
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Right margin position - Specifies the position of the right margin line within the panel. The position is specified in pixels from the left side of the Editor window.
Gutter
The gutter is the gray area to the left of the Editor panel where markers and line numbers are displayed. These settings allow you to specify the visual style of the gutter.
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Style - Specifies the background style for the gutter. You can select one of the four gradient effects or None. To select the color of the gradient fill, use the Start color and End color controls.
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Start color and End color - Specify the start and end color for the gradient fill and are used when the Style option is not None.
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Gutter capacity - Specifies the gutter width in relative units. It means how many markers can be placed in the gutter on one line.
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Line numbers - Specifies whether line numbers will be displayed in the gutter.