I downloaded a couple templates from templates.marketo.com and am trying to customize the background colors in the header, etc. but can't seem to do so.
Is there a way to customize these features? and is there a limit to what you can change in these templates (specifically the email and landing page templates).
Like Josh Hill said... you can customize them to your heart's content.
I typically save the HTML of all my landing page & email templates offline, both for archiving and also for editing... Dreamweaver is a much better platform for editing, and I find the split view between code & design really speeds things up. Our most-used emails came from the Marketo Templates site, so I can vouch for their flexibility with any brand guidelines.
You should be able to if you extract the HTML and then edit it directly. Then create a new template and copy the html back.
Thanks Josh!
I was also informed to go into the Design Studio and select the template from there. Then edit the HTML in the HTML Source tab. This way when I clone the templates later on they will all show up with the customization I made to the original.