Hello @FvG
There is an excellent resource with great icons and the best is that you can download them as png or svg. Even you can choose the size and colors before downloading to use it directly in Webflow.
The site is http://iconmonstr.com
Do a google search as well. There are also several great resources online where you can drag and drop icon sets to build your own custom webfont icon sets - they also can be generated from your own svg graphics.
I still would love to see the option to change colors of an SVG file within webflow… any chance this would be in the next update? or should I not keep my expectations that high