# Ruby custom syntax highlighting [edit]

This help topic gives an overview of the Ruby custom syntax highlighting feature.

## Introduction

The Ruby editor performs syntax highlighting for many distinct elements and tokens in Ruby code, allowing for customization on a fairly granular level.

## Instructions

To change these preferences choose Preferences from the Window (or Apple) menu. Then Navigate to Ruby -> Editor -> Syntax Coloring.

Each element can have its foreground and background color customized. You may also choose to italicize, bold, strikethrough, or underline the text. The preference window will show a live preview of source code using your changes.

## Related Topics

- Ruby Editor
- Ruby code completion
- Ruby code formatting
- Ruby code folding
- Ruby go to declaration

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