No it's not, because DirectAdmin has new very nice VueJS based theme which is installed together with DirectAdmin by default, it's called Evolution https://www.directadmin.com/evolution.php
Just go to "Reseller level" -> "Skin manager", select "Evolution", apply it to all users and make it global. It will replace your login screen as well.
Please note it also has "Customize Evolution Theme" section in reseller level, which let's you switch navigation type to Sidebar, apply custom branding etc. This skin should be made the default one in DA very soon (likely this week).