Great plugin, but I have an issue.
My client wants to be able to navigate through the carousel by tabbing. It is actually possible to do so, but the tabbing doesnt actually move the slides. If there are more than 3 slides, the tab focus goes to non visible elements.
To fix that, I think it would be great to give right or left class to a non visible element that receives focus.
There's an error when the slideshow reaches the last array if you're going right and the first array if you're going left. The right and left classes do not get added to the correct elements. I've reworked the code, see screenshot attached for a fix.
In the move carousel function, remove the reverse calculation of plus one or minus on line 72. Then on the click handler when you use the callback function, redo the calculations.