a (0x61) lsb: 24.0
a (0x61) rsb: 32.0
a (0x61) right x-extrema: 301.0
a (0x61) x-advance: 333
backslash (0x5C) lsb: 4.0
backslash (0x5C) rsb: 4.0
a (0x5C) right x-extrema: 383.0
Original kerning value: 0.000 em
Original kerned x-advance: 0.333 em
Original x-extrema offset: 0.036 em
Original in-ascender x-extrema offset: 0.066 em
Autokern
a (0x61) lsb: 15.0
a (0x61) rsb: 22.0
a (0x61) right x-extrema: 292.0
a (0x61) x-advance: 314
backslash (0x5C) lsb: -15.0
backslash (0x5C) rsb: -12.0
a (0x5C) right x-extrema: 364.0
Autokern kerning value: -0.086 em
Autokern kerned x-advance: 0.228 em
Autokern x-extrema overlap: 0.079 em
Autokern in-ascender x-extrema overlap: 0.049 em