setSliderColor has been deprecated and will be removed in a future release of shinyWidgets. If you absolutely need to use this function, copy the source code into your project https://github.com/dreamRs/shinyWidgets/blob/26838f9e9ccdc90a47178b45318d110f5812d6e1/R/setSliderColor.R
Connect to roll20 (beta, possibly unsafe and very slow)