Fonts bundled with Auralar — all under the SIL Open Font License 1.1.

auralar-serif-*.woff2   "Auralar Serif": a Modified Version of Source Serif 4
                        Display (Regular, Italic) by Frank Griesshammer for
                        Adobe. Subset by script; renamed because "Source" is a
                        Reserved Font Name. Licence: SourceSerif4-OFL.txt
auralar-sans-*.woff2    "Auralar Sans": a Modified Version of Source Sans 3
                        by Paul D. Hunt for Adobe. Weight axis limited to
                        400-600 and subset by script; renamed because "Source"
                        is a Reserved Font Name. Licence: SourceSans3-OFL.txt
ibm-plex-mono-*.woff2   IBM Plex Mono by Mike Abbink and Bold Monday for IBM,
                        IBM's own split woff2 files (npm @ibm/plex-mono 2.5.0),
                        unmodified; only the file names differ.
                        Licence: IBMPlexMono-OFL.txt

Sources: npm source-serif 4.5.1 and source-sans 3.52.0 (Adobe's releases),
@ibm/plex-mono 2.5.0. These fonts may be bundled and redistributed with the
app; they may not be sold on their own.