# Templates / Themes / Language

Templates Overview
Before editing the Maian Affiliate templates you should do the following:
1 Make a copy of the 'content/_theme_default/' folder.
Example:
content/_theme_new
(It is important your theme folder starts with "_theme" so the system can pick it up)
2 Log into your admin area and go to "Layout > Themes" (via the menu) and change the default theme to your new folder.
This ensures that future updates don't break your layout. You can also refer to the original for reference.
Once this is done, select a link below.
Before You Begin You Will Need
1 An advanced understanding of the Bootstrap v3 framework.
2 An advanced understanding of HTML5 & CSS
3 A good understanding of the PHP scripting language.
4 A good understanding of the Latte template syntax.
Edit HTML/PHP Templates
Templates & Styling Information
Language Information / Email Templates
Language & Locale Information