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theme consists of UI elements such as logos, images, landing page text, background colors etc. WSO2 API Store comes with a default theme called FancyThe easiest way to change the user interface of the API Store is by customizing the default theme. 

In this tutorial, you change the default API Store theme by applying your customizations.

All themes have a folder structure similar to the following: 

Since the default theme already has most of the UIs and JSON logic defined, in a typical scenario, you would not implement the theme from scratch. You can customize the default theme by bundling together the changes (e.g., CSS code, images) as a .zip file, and uploading it through the Admin Dashboard Web application. Once uploaded, the files in the .zip override the corresponding files in the default theme. The rest is inherited from the default theme. 

  • To override the default theme, ensure that you upload UI changes, fonts, and images as follows:
    • UI changes as CSS code
    • Fonts in SVG, TTF, EOT, WOFF, WOFF2 or OTF formats
    • Images in JPG, PNG, or GIF formats
  • Jaggery files or Javascript files are not allowed in the custom theme due to security reasons. If you include any Jaggery files or Javascript files, such files will be discarded and your theme will not work properly.

Let's get started. 

You can either take a look at the following video tutorial or go through the step-by-step walk-through of the video tutorial given below.

Here's a step-by-step walk-though of the video tutorial:

  1. Download the default theme from, 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 <THEME_HOME>/libs/theme-wso2_1.0/images/logo-inverse.svg with the preferred logo.

  3. To change the favicon of the API Store, replace <THEME_HOME>/images/favicon-store.png with a preferred icon.
  4. To change the logo of the API Store's self sign up page, replace the <THEME_HOME>/images/logo-white.png with a preferred logo.
  5. Open the <THEME_HOME>/css/custom.css file using a text editor and add the following CSS code to the end of the file. Take a look at the code comments to understand what each line of code does.

    /* Change the color of the header */
    header.header-default {
        background: #555555 none repeat scroll 0 0;
    /* Change the color of the Top Navigation Bar */
    .navbar {
        background: #555555 none repeat scroll 0 0;
    /* Change the color of the search box and its fonts */
    .search-wrap .appm-content-search {
        background: #ffffff;
        color: #000000;
    .appm-content-search::-moz-placeholder {
        color: #000000;
    /* Change the color of the Search box dropdown button */
    .search-wrap .btn.dropdown-toggle {
        background: #555555 none repeat scroll 0 0;
        border-color: #555555;
    /* Change the color of the Search box search button */
    .search-wrap .btn.wrap-input-right {
        background: #555555;
    /* Change the font of the menus, headings, labels etc. to Verdana. You give several fonts here to ensure maximum compatibility, if in case one font fails in a given browser/OS. Fonts will be applied in the order you list them.  */
    body,textarea,pre,.navbar-search .search-query{
        font-family: Verdana, Arial, Helvetica, monospace, san-serif;
    label, input, button, select, textarea{
        font-family: Verdana, Arial, Helvetica, monospace, san-serif;
        font-family: Verdana, Arial, Helvetica, monospace, san-serif;
    /* To change the background color of the body */
        background: #D0D0D0;
    /* To change the color of the buttons. Note that changing only the background color will not have a visual impact if you leave the gradients as they are  */
    .btn-primary {
      background-color: #800004;
      background-image: linear-gradient(to bottom, #cc0022, #cc0044);
  6. Since you plan to upload this as a sub-theme of the default main theme, delete all the files in your <THEME_HOME> folder except the ones that you just edited. The rest of the files will be automatically applied from the main theme.
  7. Go inside the <THEME_HOME> folder, select all the files/folders inside it (Ctrl+A) and right click to archive all the selected files and folders together. Then rename the archive files to

    Tip: Be sure to create the archive file by selecting all the files/folders (Ctrl+A) and right clicking on all the selected artifacts.

  8. Log in to WSO2 API Cloud by going to, clicking the Sign In link and then selecting WSO2 API Cloud. 
  9. Click the Admin Dashboard menu under the Configure menu to open the Admin Dashboard.
  10. The Admin Dashboard opens. Click SETTINGS -> UPLOAD TENANT THEME and upload your zip file (e.g.,
  11. Open the API Store and the Signup page and note that your UI customizations are applied.


    Tip: It can take up to 15 minutes for a new theme to be applied to the API Store.

In this tutorial, you applied a few selected UI changes to the API Store.

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