HEVC video with transparency is apparently possible[1], though I’m not sure if it’s supported on non-Apple platforms.
101 karma · joined August 19, 2009
[ my public key: https://keybase.io/wevah; my proof: https://keybase.io/wevah/sigs/LT28v2Bi-DJp23TKiMt9zoWSjpDwSPvJJ1W8vRp74hk ]
(Edit: I think I misread “know” as “know of”; whoops.)
One documentation nit: “Parenthesis” is singular; the plural is “parentheses”.