these TF triggers come in all shapes and sizes, don't they?

I wrote an image description, but I couldn't fin a field for it, so I just dump that here:
pencil sketch of an anthro snake looking bright eyed at the viewer. She touches a slider on the right side of the screen about 2 thirds up it's length. The top is wider than the bottom and a plus sign is near the top of the slider, as well as a minus sign next to the bottom. A mirrored text box in near the bottom reads "Prossesing..."

Yes, I know that it's "Processing", it was late and I wrote it backwards :!!: