Evo-Enter is a simple UI script that appears when players enter the server, prompting them to press Enter to gain access.
This script uses ESX only for notifications. Modifying notifications is very simple, you just have to replace them in the client.lua file. To replace the logo this is in ui/img and to change the color of enter it is in the style.css file line 57
And you delete lines 3 to 5. Then, in your multi-character script, you add a trigger (TriggerEvent('Evo-Enter:showEnterUI') if you call it client-side or TriggerServerEvent('Evo-Enter:showEnterUI') if you call it server-side) at the moment the player confirms their character, it should work.