You can easily customize the Business Manager online store by editing the smarty template files and CSS in your theme directory.
To customize an online store:
header.tplfile. You can modify any of the code below the
body>tag. Save the file after you have completed your modifications.
footer.tplfile. You can modify any of the code above the
/body>tag. Save the file after you have completed your modifications.
/lib-themes/default/lib-billing/css/directory and viewing the
Note: You can change the background color by modifying the following section of code:
font-family: "Tahoma", sans-serif;