Nick O'Leary 8ea25bcd1c
Update build-custom-theme to handle keyframes properly
Fixes #2636

Also adds a header to the generated CSS identifing the version
of NR and date/time it was generated.
2020-07-07 11:38:07 +01:00
..
2020-06-29 21:08:34 +01:00
2020-06-29 21:08:34 +01:00
2020-06-29 21:08:34 +01:00