Add a set of standard colored markers to the package.
Now there's just blue, but being able to say 'marker-icon-red' in place of 'marker-icon' would be great.
(I have made th standard marker into 11 other colors, and happy to share them)
While I’ll consider adding some more colored markers to the repo, you can currently generate your own markers similar to the default one as the SVG source for the icon is now included in the repo.
Robert Nuske commented
maybe the Plugin Leaflet.Awesome-Markers helps for now