Like other CMS platforms, Drupal allows us to create custom themes and templates. In this tutorial, you’re going to learn how to create a new theme and defining or configuring a theme in Drupal 7.

Theme Structure

To define a new theme in Drupal 7, you need to create folders and files according to Drupal’s rule.

So, we start by create the following folders:

Go to root folder of Drupal > Sites > All > Theme and create theme folders as below:

• mytheme is the folder that contains themes and can be renamed to your theme’s name.
• mytheme.info is file used to define theme name, version, core ,css, javascript.
• screenshot.png is thumbnail of theme, which is showed in theme management section.

Defining theme using .info file

The .info file is a static text file for defining and configuring a theme. Each line in the .info file is a key-value pair with the key on the left and the value on the right, with an “equals sign” between them (eg:   name = my_theme ).

Now, open mytheme.info and start defining:

Theme name (required):

name = mytheme

Description:

description = tutorialdrupal.com how to create and define drupal theme

Theme version

version = 0.1

Core drupal

core = 7.x

Engine

engine = phptemplate

Screenshot

screenshot = screenshot.png

After finishing, we will have a new .info  file like this:
name = mytheme
description = tutorialdrupal.com how to create and define drupal theme
version = 0.1
core = 7.x
engine = phptemplate
screenshot = screenshot.png

Now save the file, go to theme management section, you will see the new theme you’ve just created:

Defining Drupal website’s regions

Region is section for showing Drupal website’s blocks. Regions are defined as follows:

regions[header] = Header
regions[highlighted] = Highlighted
regions[help] = Help
regions[content] = Content
regions[sidebar_first] = Left sidebar
regions[sidebar_second] = Right sidebar
regions[footer] = Footer

After you’re done, save the file and click on “enable and set default” to set this theme as default theme. Now go to Structure -> Block, you will see the new defined regions:

1. Include css file

stylesheets[all][] = style.css
stylesheets[print][] = print.css

2. Include javascript file

scripts[] = myscript.js

So, you’ve just created a new theme in Drupal 7. It's not a difficult task, right?

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