I am just playing around a little and installed a complete Website with Echo/Docker.
Here my first impressions in the combination, that should be perfect, because it´s bouth your products.
1. The docker and the title-bar are confusing. What is the title-bar there for?
2. The slightly different colours look very unprofessional. The rule in design is: Make clear differences or no differences. When a user visits the page the first time, he can´t understand the difference between title-bar and docker.
3. No Logo can be used. The name of the page is just a word "floating around".
Best solution -> Improve the docker so it contains the mainmenu (and some other stuff), so the title-bar and the mainmenu at the menu-position can be turned off.