Change admin logo and backoffice color

Hello, I was wondering if there is a way to change the “u” Umbraco logo in the top left corner of admin.

Can the color of the top bar with menu be changed?

Also is there a way to remove the Getting started dashboard?

The best way is to write a package, but I am not sure if those backoffice modifications are possible to edit.

Thanks a lot
Peter


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/111213-change-admin-logo-and-backoffice-color