Restore svg

Author: cvanelteren

docs/conf.py

@@ -537,7 +537,7 @@ def _reset_ultraplot(gallery_conf, fname):
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large. Static folder is for CSS and image files. Use ImageMagick to
 # convert png to ico on command line with 'convert image.png image.ico'
-html_favicon = str(Path("_static") / "logo_square.png")
+html_favicon = str(Path("_static") / "logo_square.svg")
 
 # -- Options for HTMLHelp output ---------------------------------------------