Polymer imports for ubuntu fonts. More info at http://font.ubuntu.com/.
This package provides multiple version of the fonts, so that you can select the best version depending on the family, weight and style you are willing to download:
ubuntu.htmlcontains the regular ubuntu font at different weights, in normal and italic style.ubuntu-mono.htmlprovides the mono family of the ubuntu font.ubuntu-condensed.htmlis similar, but for the condensed family.ubuntu-complete.htmlcontains all of the 3 above font families.ubuntu-light.htmlcontains the regular ubuntu font at different weights, but only in its normal style variant.
Complete license is available at http://font.ubuntu.com/licence/.