$opentype140:wgl4-optional
[\u21A8\u2302\u2310\u2320-\u2321\u2580\u2590-\u2591\u25AC\u25BA\u25C4\u25D8-\u25D9\u263A-\u263C\u2666\u266B]
[\x{21A8}\x{2302}\x{2310}\x{2320}-\x{2321}\x{2580}\x{2590}-\x{2591}\x{25AC}\x{25BA}\x{25C4}\x{25D8}-\x{25D9}\x{263A}-\x{263C}\x{2666}\x{266B}]
[Notes]
The set definition is contained in sets.json
data file.