> For the complete documentation index, see [llms.txt](https://devguide.e107.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://devguide.e107.org/theme-development/layout-and-templates.md).

# Layout & templates

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**Please note:** This page is under construction and has not been finished yet
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## Introduction

## theme.php 

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Adding `$CUSTOMPAGES` to [theme.php](/theme-development/layout-and-templates.md#theme-php) in e107 v2.x is deprecated and should be avoided!
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## theme.html