If we can recreate liveries from other racing games like Need for Speed: Most Wanted, Need for Speed: Rivals, etc., that should also mean we can recreate decals/liveries from mobile racing games like Asphalt 8: Airborne, CSR 2, etc.
Here are several examples of decals from Asphalt 8: Airborne that I would like to see recreated for use in Forza Horizon 2, Forza Motorsport 6, and Forza Horizon 3. The Asphalt Wiki has Decals pages for the cars in the game, complete with an image of the decal, a description/name, its price (in either Credits, Tokens, or Licenses; sometimes, it is either an Event-exclusive decal or available by default), and what game version it was added in (denoted by an icon. Examples: If the icon is a 2016 Camaro SS, the decal was added in v2.4.0, the Elite Cars Update. If the icon is a yellow Aventador, the decal was added in v1.9.0/v1.9.1, the Tenerife Update).
2012 Lamborghini Aventador LP 700-4
2013 Ferrari LaFerrari
2013 McLaren P1™
2014 Lamborghini Huracán LP 610-4
2015 Koenigsegg One:1
2015 McLaren 570S Coupé
2015 McLaren P1™ GTR
2016 Chevrolet Camaro SS
2016 W Motors Lykan HyperSport
Here is a decal that TendingCloth65 (someone who recreates decals from A8) has recreated (which he titled Hex Edition):
And the original decal as a reference (which the Asphalt Wiki also calls Hex Edition):
Anyone skilled enough to recreate liveries/designs from other games is skilled enough to recreate a decal from Asphalt 8: Airborne. You can message TendingCloth65, but it appears that he is offline for some time right now. He shouldn’t be the only one to recreate decals from that game, so anyone who can recreate designs from other games like NFS Most Wanted can recreate A8 designs.