Slider - RJM Programming - November, 2016 - Thanks to http://yui.github.io/yui2/docs/yui_2.9.0_full/slider/index.html (dual_thumb_bg.gif Script-Fu -> Sketch -> Roy Lichtenstein just to rectangle selection of inner bit) (l/r-thumb-round.gif Script-Fu -> Effects -> Sepoina Graf-ix) ... thanks to http://acervofundiario.incra.gov.br/i3geo/pacotes/yui290/build/slider/assets/dual_thumb