Open access logos

[moewew]

See https://tex.stackexchange.com/q/459449/35864 (also for MWEs). It might be a nice idea to promote open access by showing a small open access logo next to articles which are openly available. Still a gimmick, though.

There are a few things to work out for inclusion in the package

• License of the logos
• Inclusion of the logos (carry a PDF/PNG/SVG or implement with TikZ; which packages should be loaded)
  • biblatex-ext should not force users to load TikZ if they don't want the logo. Same goes for graphicx (though that would be less problematic). You can't unload packages.
  • Maybe with a separate logo package instead of an option?
• Something like \pluton@getoaurl seems unavoidable. We can't make do with only the eprint:<eprinttype> field format. But there should be a simple mechanism to extend the test easily, so that a new eprinttype can be added with little extra overhead.

Can we get this in for v0.6 (which otherwise just includes updates for 3.12 one bugfix and something for #13)?

[moewew]

Implemented in v0.6. See examples in https://tex.stackexchange.com/q/459449/35864 as well as the combined example file https://github.com/moewew/biblatex-ext/blob/master/oaslinks.tex.