Implemented fixes from Gitlab issues from Marc Hagen & Trent Robinson (https://gitlab.com/jackgreyhat/librenms-speedtest/-/issues/2) and fixes from m0nsieur Psych0 (https://gitlab.com/jackgreyhat/librenms-speedtest/-/issues/6) I added support for darkmode, this is done by generating the graphs with white text, then using CSS to invert the image, for light mode users. I also moved branding PNGs to vectors for higher resolutions I will not be opening a PR at https://gitlab.com/jackgreyhat/librenms-speedtest as this seems to have been abbandoned.