Really appreciate the feedback!
1) All you need to do is install our NPM module (or add a script tag to your website), and call Cohere.init when your app has launched. If you want to see logged in users identified in the dashboard, you can optionally pass their info in: https://docs.cohere.so/#/?id=optional-identifying-users
2) This isn't the most detailed answer, but we went off of gut feeling for the overall look and did the graphics/interfaces ourselves. The starting point was the initial shade of blue, and we played around quite a bit with variations on that hue. We ended up working with a design firm (Aesthetic S18) for the logo, which we're quite happy with!