Quick fixes for that code I posted:
* In renderlinks, in the final htmlout, change “%s %s” to “%s%s” and up earlier add a space to the end of the $image_html sprintf.
* also at $image_html, style=”blogrollicon” should be class.
* Add to CSS: .RSSFeedBlogRoll img.blogrollicon { width: 16px; height: 16px; } because some sites present large favicons.
Also, I wrote some hacky favicon/RSS feed discovery code which needs a rewrite by someone who knows how to code for WordPress: https://pastebin.com/GWuinzEg
