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A theme consists of UI elements such as logos, images, copyrights messages, landing page text, background colors etc. WSO2 API Store comes with a default theme. 

The folder structure of the API Store themes

The default theme of the API Store is called Fancy. You find it inside the <APIM_HOME>/repository/deployment/server/jaggeryapps/store/site/themes/fancy folder. If you do not have access to the file system, download the default theme from here. 

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Because a sub theme is saved inside a main theme, it needs to contain only the files that are different from the main theme. Any file you add inside the sub theme will override the corresponding files in the main theme. The rest of the files will be inherited from the main theme. 

Let's see how to create a new theme and set it to the API Store: 

Writing a sub theme of the main theme

Because a main theme already has most of the UIs and the syntax and logic of Jaggery code defined, in a typical scenario, you do not have to implement a theme from scratch. Rather, you just add in your edits as a sub theme of the existing main theme as given below:

1. Download the default main theme from here, unzip it and rename the folder according to the name of your new theme (e.g., ancient). Let's call this folder the  <THEME_HOME> .
2. To change the logo of the API Store, replace the the logo.png  file inside the  <THEME_HOME>/images  folder with this logo (or anything else of your choice.)
3. To change the copyrights note in the footer, open the <THEME_HOME > HOME>/templatestemplates/page/base/templatetemplate.jag  file using a text editor, search for the word "Copyright"  and change the text. For example, let's add our company name as "copyright", "© Copyright 2011 – 2014 My Company." 

4. To change the header's b ackground color, open the <THEME_HOME>/csscss/styles-layout.css file using a text editor and add the following CSS rule to the end of the file. It changes the header color to red.

   Code Block
   language css
   .header-menu div.navbar-inner div.container-fluid{ background:red; }

Adding a new page to the Store

Go to <THEME_HOME>/site/pages folder where you find the pages of the API Store. These pages are common to all the themes. Duplicate the sign-up.jag file and rename it  to about.jag. 

Open the "about.jag" file you just created.

Adding the new theme to the Themes menu

Once you are done modifying the new theme, add it to the Themes menu in the API Store along with a thumbnail image as follows:

1. Open the <THEME_HOME>/ templates/user/login/template.jag file and find the HTML table that defines the theme thumbnails. 

2. Add a new row under the <table> element with the following code. It adds thumb-ancient.png as the thumbnail image of our theme. Be sure save the image in the  <THEME_HOME>/images  folder.

   Code Block
   language xml
   <tr> <td> <div class="thumbnail <% if(jagg.getUserTheme().base == "fancy" && jagg.getUserTheme().subtheme == "ancient") { %>currentTheme<% } %>"> <a data-theme="fancy" data-subtheme="ancient" class="badge themeLabel" onclick="applyTheme(this)"> <img src="<%=jagg.getAbsoluteUrl(jagg.getThemeFile("images/thumb-ancient.png"))%>" /> <br /><div class="themeName">Ancient</div> </a> </div> </td> <td> </td> </tr>

Setting the new theme as the default theme

You can set your new theme as the default theme in two ways:

• Using the file system
• Using the Admin Dashboard Web application

If you have access to the file system,  open the <APIM_HOME>/repository/deployment/server/jaggeryapps/store/site/conf/site.json  file and add the following code to it.

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It specifies the base theme as fancy, which is overridden by the sub theme ancient. As you specify a subtheme element here, the base theme is overridden by it.   

If you do not have access to the file system (e.g., you are using the WSO2 Cloud) 

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