I have chosen to style the scrollbar using the "Custom CSS Code" area under the Salient > General Settings tab and it appears to work on all browsers, but I have one itsy-bitsy design request that I think should be added to the Salient theme: responsive scrollbar customization. Instead of having to write lines and lines of custom CSS code to modify the scrollbar, it would be absolutely splendiferous if there was an area under the Salient tab to customize the scrollbar color, width, et cetera. I suggest this because I was able to change basic things like color and shading, but if the scrollbar is anything but 16 pixels wide, the entire site becomes disorganized and non-responsive. Any feedback on this issue will be muchly appreciated. Thank you.

Thank you for the prompt reply. I look forward to future developments with the Salient theme. I've worked with many themes and I can honestly say that Salient is the most comprehensive, user-friendly theme I've ever used. Thank you once again. Cheers!