How to set custom background to the outlining block delimiters in WinForms SyntaxEditor (EditControl)?
Background setting
You could do so by setting the appropriate value to BackColor field in the format definition in the configuration file as shown below.
Xml
<format name="PreprocessorKeyword" Font="Courier New, 10pt" BackColor="Orange" FontColor="Gray" /> <format name="HiddenRegionSpecifier" Font="Courier New, 10pt" BackColor="LightSkyBlue" FontColor="Gray" /> <format name="ReadOnlyRegionSpecifier" Font="Courier New, 10pt" BackColor="Yellow" FontColor="Gray" /> <format name="CollapsedText" Font="Courier New, 10pt" FontColor="Black" BackColor="Aqua" BorderColor="Gray" BorderStyle = "Solid"/>