I installed WordPress just a few days ago and am trying to get into modifying the default theme a little to my liking.
I'm reluctant to directly edit the CSS file because I don't want to lose the original stylesheet in the event that I am unhappy with my changes.
Is there any plugin or functionality in WordPress that would allow me to duplicate+rename a file of my choice in the Theme editor? What about a preview function for stylesheet changes that would let me undo changes on the spot.
Is there anything like this? If not.. what's the best way for me to go about trying my own mini-modifications to the existing theme?