I'm new to Confluence. How exactly do you change the header/title for a side bar in a new space? (Not sure if this is the correct name for it, but that's what it looks like.)
I'm using Documentation theme, and I have read the Configuring the Side Bar article. Changing the space name and logo in Global theme just shows as a page title when you change it back to Documentation theme.
The first screenshot is of the existing documentation that I need to match. See how the side bar there has a neat little header?

Here's a screenshot of the new space I created:
