The clients who purchased and using the Custom Cloud plan or Server package have an option to remove branding on UI of WProofreader. The branding includes: the title on the UI of the product and About tab with copyrights and logo. This can be archived by adding removeBranding option set to true in the configuration.
<script>
window.WEBSPELLCHECKER_CONFIG = {
...
removeBranding:true,
...
}
</script>