## Chapter 4. Customize your installation

Table of Contents

4.1. CSS and HTML pages
  4.1.1. How it works
  4.1.2. Style OLAT using CSS and images
  4.1.3. Main layout files
  4.1.4. OLAT GUI debug mode
  4.1.5. Diving into the java source code from OLAT
4.2. Internationalization and translations
  4.2.1. Concept
  4.2.2. Configuration
  4.2.3. The online translation tool
  4.2.4. Files not covered by the Online Translation Tool