{
"abutting":"three glyphs abutting mid-pixel: the seam pixels read 255 (the glyph-wise union): accepted",
"arabic-joins":"an Arabic joining sequence from the test repertoire in one run, large: each connector's round cap passes its glyph's edge and overlaps the neighbour, and the glyph-wise union over-covers the partly covered edge pixels of each overlap (the join knot, §3.13): accepted",
"arabic-joins-split":"the same joining sequence split across two runs, which an encoder never writes (one joining sequence per run): the runs composite by source-over, so the join's pixels differ from the one-run vector: accepted",
"marks":"marks overlapping their bases: accepted",
"overlapping":"glyphs that overlap: the partly covered edge pixels of the overlap over-cover (the knot, §3.13): accepted",
"phases":"one glyph at all 256 subpixel phases of the x axis: accepted",
"run-4096":"a run of 4,096 glyphs, the cap: accepted",
"two-runs":"two runs that abut mid-pixel: across runs the fills composite by source-over, and the seam returns: accepted"
}