PrestaShop 1.6
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Organization of a Theme

Let's diving into the way a theme is organized: folders, files, where they belong and how to handle them correctly

Folders and files

Folders

The main folders of any PrestaShop theme are those:

  • The /cache folder contains all the temporary files that are generated and reused in order to lighten the server load. The folder is empty by default.
  • The /css folder contains all CSS files.
    • The /sass folder contains all the Sass .scss source files, before they are compiled into the CSS files.
  • The /font folder contains the needed font files.
  • The /img folder contains all images.
  • The /js folder contains all the JavaScript files.
  • The /lang folder contains the theme's translations. Its access rights should be set at CHMOD 666 (for instance), so that the back-office translation tool can read and write into it.

The following folders are not directly theme-related, but help you make sure the whole of PrestaShop's feature have a design that is consistent with your theme:

  • The /mails folder contains the templates for the emails that PrestaShop sends (order confirmation, password request, shipping notifications, etc.).
  • The /mobile folder contains the mobile version of the theme.
  • The /modules folder contains the template files for many modules.
  • The /pdf folder contains the template files for the PDF files that PrestaShop generates (invoices, delivery slip, supply orders, etc.).

The root of the folder contains TPL files only, as well as the preview.jpg thumbnail file.

Thumbnail file

The preview.jpg file at the root of the theme's folder is the thumbnail that is used by PrestaShop in its back-office theme selector.

It serves as a visual reminder of what the theme is, and you should therefore make it a screenshot rather than your company's logo.

It can have any size – the default theme's is 180*445 pixels.

It must be a JPEG file.

CSS and Sass files

CSS

The theme's CSS files are located in the /css folder.

It is recommended to have a common style sheet for global CSS rules: global.css.
Then, each of the controller should have its own CSS file: for instance, product.css for the Product page.

Sass / Compass

Sass and Compass files are optional: you do not need to use these tools to build the CSS files for your back-office theme.

If you do use Sass and Compass, we strongly advise to put the source .scss files in the /sass theme, so that other developers can have access to theme and rework them more easily.

From there, you can generate the CSS files in the /css folders from the Sass files in the /sass folder!

Font files

The /font folder is optional: it contains the fonts that you chose to use for your theme.

For instance, the default PrestaShop theme uses the FontAwesome font set (http://fortawesome.github.io/Font-Awesome/), and therefore has the following files in its /font folder:

  • fontawesome-webfont.eot
  • fontawesome-webfont.svg
  • fontawesome-webfont.ttf
  • fontawesome-webfont.woff

If you do not build your theme with a specific font in mind, you can skip this folder.

Image files

Theme-related images are to be stored in the /img folder.

You can create sub-folder for a better organization. For instance, the default theme has the following subfolders:

  • /icon for simple icons (for instance, those not available in your chosen font set).
  • /jquery for for jQuery-specific images.

You can create more if needed.

JavaScript files

JavaScript files are to be stored in the /js folder.

Unlike CSS files, we recommend you NOT to have a common/global JavaScript file, nor should you have a single file per controller.

Language files

All the translation files are to be stored in the /lang folder.

Files should be named after their ISO 3166-1 alpha-2 code in lowercase: for instance, fr.php.

These files should be generated by PrestaShop integrated translation tool (located in the Localization / Translations menu).

The mobile theme

PrestaShop has a mobile theme option in its back-office: in the Preferences / Themes page, the "Mobile" tab in the "Your current theme" section give you the following choices: disable the option, or enable it for smartphones, tablets or both.

Once this option is enabled, the theme that is displayed to the mobile visitor is not the default desktop theme but the alternative theme that is located in the /mobile folder: it is better suited for this format, and therefore your customers will appreciate the difference.

 

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