Hi there Gavin, thanks for getting in touch!
The form in the header above the calendar is controlled by theย #tribe-bar-form ID, so you could try adding the following to your stylesheet:
#tribe-bar-form {
background: #a1c3d9;
}
The view toggle to the right of the form uses a different class:
.tribe-bar-views-inner
That should get you where you need to go, but you can also check out our Themer’s Guide (specifically the Customizing Styles section) for more details on customizing the calendar appearance.
Does that make sense? Will that work for you? Please let me know. ๐
Cheers!
Geoff