-o file:///tmp/outputfolder.taras a possible structure; I don't know if that's a good clue. You could always try filing an issue there. It looks like pyramidio was written by @avandecreme; I don't know if he's still active here or on that project, but maybe someone else is paying attention.
ABSOLUTEconst was added for positioning the navigator, not the controls, and the controls don't really have a mechanism for supporting it. One thing you could do would be to explicitly set the styling on it via
viewer.navControl.style. Looks like it doesn't even set
position: absoluteso you'd have to do that , in addition to setting the left and top values. Of course it would be cool if we actually supported that value for real, so if you want to make a pull request (or even file an issue) that would be great :)