Trying something different but need help

Ok I am trying the CSS checkbox hack for my project but can't get it to work. Here is what I have. I would greatly appreciate any help. I am trying to get the buttons to change the color of the svg and was trying to follow this tutorial https://redstapler.co/change-image-color-pure-css/ but here https://www.abmartin.net/metal-roofing-panels/abm/color-visualizer is what I am trying to accomplish once I get the code to work for me. I'm a total newbie so I am trying to dissect each thing...

Trying something different but need help WordPress ...