xCards by Xadeck — https://github.com/Xadeck/xCards
Source revision: 185407f01a7424065a8eeff8ef50aab130ff8bfe
Original card design: https://sourceforge.net/projects/vector-cards/
Distributed under LGPL-3.0; see LICENSE.txt. Original PNG assets are unmodified.
Joker included at the user's request following their confirmation of licensing.
Runtime copies are converted to WebP with lossless encoding. Original PNGs included in the source package.