You can change various aspects of your mobile site, when you choose the optimised view via the Mobile Settings panel.
Preview your mobile site
Click on 'Mobile' in the main toolbar > 'Mobile preview' under the toolbar.
You can navigate every page of your mobile site here to preview how it looks. Click the 'Menu' button on the preview window to change pages.
Change mobile colours
Click on 'Mobile' in the main toolbar.
From the left sidebar, choose the colours for different areas including header text and site background. This will affect every page of your mobile site.
Click on 'Mobile' in the main toolbar > 'Arrange content' under the toolbar.
On the right sidebar you will see a list of all content on that specific page.
The eye icon indicates which content is visible. Clicking on the icon will toggle the content visibility on/off.
You can rearrange content by clicking, holding and dragging the three line icon next to the element, and moving it up and down the list.