anchor.diff:      String pageTitle = "WSO2 API Manager";
       String footerText = "WSO2 API Manager";
       String faviconSrc = "libs/theme/assets/images/favicon.ico";
  +    File customCSSFile = null;
  +    String customCSS = "";
  +    String tenantThemeDirectoryName = "";
   
       if (tenant != null) {
           String current = new File(".").getCanonicalPath();
           String tenantConfLocation = "/repository/deployment/server/jaggeryapps/devportal/site/public/tenant_themes";
  -        String tenantThemeDirectoryName = tenant;
  +        tenantThemeDirectoryName = tenant;
           String tenantThemeFile =  current + tenantConfLocation + "/" + tenantThemeDirectoryName + "/" + "loginTheme.json";
  +        customCSS = current + tenantConfLocation + "/" + tenantThemeDirectoryName + "/" + "loginTheme.css";
           File directory = new File(current + tenantConfLocation + "/" + tenantThemeDirectoryName);
           if (directory != null && directory.exists() && directory.isDirectory()) {
               File themeFile = new File(tenantThemeFile);
  +            customCSSFile = new File(customCSS);
               if (themeFile != null && themeFile.exists() && themeFile.isFile()) {
                   FileReader fr = new FileReader(themeFile);
                   JSONParser parser = new JSONParser();
  
positive.code: <%@ page import="org.json.simple.parser.JSONParser"%>
  <%@ page import="org.json.simple.JSONObject"%>
  <%@ page import="java.net.URI"%>
  
  <%
      String tenant = request.getParameter("tenantDomain");
  
negative.code:     }
  </style>
  
  <%
  	String cssPath = request.getAttribute("customCSS") + "";
  	if (!StringUtils.isEmpty(cssPath)) {
  %>
  		<link href=<%=cssPath%> rel="stylesheet" type="text/css">
  <%	}
  %>
  
  <script src="libs/jquery_3.4.1/jquery-3.4.1.js"></script>
  