1. MxAshlynn Short Codes: Glyph Combos
2. GB Studio Default: "ASCII" Characters
3. GB Studio Canonical Encoding: Font Mapping
4. Paige's Version: MxAshlynn Font Format
I use these glyph combos in my fonts:
🅰 (A) ⒶⓁ [ALT]
🅱 (B) 🄲🅁 [CONTROL]
🅢🅣🅡 (START) ⒺⓃⓉ [ENTER]
🆂🅴🅻 (SELECT) 🅂🄷🄵 [SHIFT]
⊕αβ🖤💀
🗹⊙🛈❔❕
By default, GB Studio uses the Windows Code Page 1252.
As of February 2026, the official documentation still incorrectly identifies this as ASCII, but there are diferences which have lead to confusion and a lack of interoperability between GB Studio and Unicode.
All of the characters that GB Studio maps from this codepage (with delete replaced by ⌦, nonbreaking space replaced by ␣, soft hyphen replaced by ⁃, and other nonprinting characters replaced by �) are given here in the order GB Studio uses:
!"#$%&'()*+,-./
0123456789:;<=>?
@ABCDEFGHIJKLMNO
PQRSTUVWXYZ[\]^_
`abcdefghijklmno
pqrstuvwxyz{|}~⌦
����������������
����������������
␣¡¢£¤¥¦§¨©ª«¬⁃®¯
°±²³´µ¶·¸¹º»¼½¾¿
ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ
ÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß
àáâãäåæçèéêëìíîï
ðñòóôõö÷øùúûüýþÿ
In general, the nonprinting characters are hard to work with without a font mapping.
A much more flexible and reliable way to organize GB Studio font files is using a font mapping.
Unfortunately, the exact form of this file is not well documented as of February 2026. So, here is an example of the default font mapping:
{
"name": "GBS Mono",
"mapping": {
" ": 32,
"!": 33,
"\"": 34,
"#": 35,
"$": 36,
"%": 37,
"&": 38,
"'": 39,
"(": 40,
")": 41,
"*": 42,
"+": 43,
",": 44,
"-": 45,
".": 46,
"/": 47,
"0": 48,
"1": 49,
"2": 50,
"3": 51,
"4": 52,
"5": 53,
"6": 54,
"7": 55,
"8": 56,
"9": 57,
":": 58,
";": 59,
"<": 60,
"=": 61,
">": 62,
"?": 63,
"@": 64,
"A": 65,
"B": 66,
"C": 67,
"D": 68,
"E": 69,
"F": 70,
"G": 71,
"H": 72,
"I": 73,
"J": 74,
"K": 75,
"L": 76,
"M": 77,
"N": 78,
"O": 79,
"P": 80,
"Q": 81,
"R": 82,
"S": 83,
"T": 84,
"U": 85,
"V": 86,
"W": 87,
"X": 88,
"Y": 89,
"Z": 90,
"[": 91,
"\\": 92,
"]": 93,
"^": 94,
"_": 95,
"`": 96,
"a": 97,
"b": 98,
"c": 99,
"d": 100,
"e": 101,
"f": 102,
"g": 103,
"h": 104,
"i": 105,
"j": 106,
"k": 107,
"l": 108,
"m": 109,
"n": 110,
"o": 111,
"p": 112,
"q": 113,
"r": 114,
"s": 115,
"t": 116,
"u": 117,
"v": 118,
"w": 119,
"x": 120,
"y": 121,
"z": 122,
"{": 123,
"|": 124,
"}": 125,
"~": 126,
"⌫": 127,
"€": 128,
"▒": 129,
"‚": 130,
"ƒ": 131,
"„": 132,
"…": 133,
"†": 134,
"‡": 135,
"ˆ": 136,
"‰": 137,
"Š": 138,
"‹": 139,
"Œ": 140,
"▒": 141,
"Ž": 142,
"▒": 143,
"▒": 144,
"‘": 145,
"’": 146,
"“": 147,
"”": 148,
"•": 149,
"–": 150,
"—": 151,
"˜": 152,
"™": 153,
"š": 154,
"›": 155,
"œ": 156,
"▒": 157,
"ž": 158,
"Ÿ": 159,
"␣": 160,
"¡": 161,
"¢": 162,
"£": 163,
"¤": 164,
"¥": 165,
"¦": 166,
"§": 167,
"¨": 168,
"©": 169,
"ª": 170,
"«": 171,
"¬": 172,
"⁃": 173,
"®": 174,
"¯": 175,
"°": 176,
"±": 177,
"²": 178,
"³": 179,
"´": 180,
"µ": 181,
"¶": 182,
"·": 183,
"¸": 184,
"¹": 185,
"º": 186,
"»": 187,
"¼": 188,
"½": 189,
"¾": 190,
"¿": 191,
"À": 192,
"Á": 193,
"Â": 194,
"Ã": 195,
"Ä": 196,
"Å": 197,
"Æ": 198,
"Ç": 199,
"È": 200,
"É": 201,
"Ê": 202,
"Ë": 203,
"Ì": 204,
"Í": 205,
"Î": 206,
"Ï": 207,
"Ð": 208,
"Ñ": 209,
"Ò": 210,
"Ó": 211,
"Ô": 212,
"Õ": 213,
"Ö": 214,
"×": 215,
"Ø": 216,
"Ù": 217,
"Ú": 218,
"Û": 219,
"Ü": 220,
"Ý": 221,
"Þ": 222,
"ß": 223,
"à": 224,
"á": 225,
"â": 226,
"ã": 227,
"ä": 228,
"å": 229,
"æ": 230,
"ç": 231,
"è": 232,
"é": 233,
"ê": 234,
"ë": 235,
"ì": 236,
"í": 237,
"î": 238,
"ï": 239,
"ð": 240,
"ñ": 241,
"ò": 242,
"ó": 243,
"ô": 244,
"õ": 245,
"ö": 246,
"÷": 247,
"ø": 248,
"ù": 249,
"ú": 250,
"û": 251,
"ü": 252,
"ý": 253,
"þ": 254,
"ÿ": 255
}
}
Note the redundant assignment of the medium shade dither glyph, ▒.
Here is shortened version I use in my GB Studio fonts:
{
"name": "MxAshlynn Font Format",
"mapping": {
" ": 32,
"!": 33,
"\"": 34,
"#": 35,
"$": 36,
"%": 37,
"&": 38,
"'": 39,
"(": 40,
")": 41,
"*": 42,
"+": 43,
",": 44,
"-": 45,
".": 46,
"/": 47,
"0": 48,
"1": 49,
"2": 50,
"3": 51,
"4": 52,
"5": 53,
"6": 54,
"7": 55,
"8": 56,
"9": 57,
":": 58,
";": 59,
"<": 60,
"=": 61,
">": 62,
"?": 63,
"@": 64,
"A": 65,
"B": 66,
"C": 67,
"D": 68,
"E": 69,
"F": 70,
"G": 71,
"H": 72,
"I": 73,
"J": 74,
"K": 75,
"L": 76,
"M": 77,
"N": 78,
"O": 79,
"P": 80,
"Q": 81,
"R": 82,
"S": 83,
"T": 84,
"U": 85,
"V": 86,
"W": 87,
"X": 88,
"Y": 89,
"Z": 90,
"[": 91,
"\": 92,
"]": 93,
"^": 94,
"_": 95,
"`": 96,
"a": 97,
"b": 98,
"c": 99,
"d": 100,
"e": 101,
"f": 102,
"g": 103,
"h": 104,
"i": 105,
"j": 106,
"k": 107,
"l": 108,
"m": 109,
"n": 110,
"o": 111,
"p": 112,
"q": 113,
"r": 114,
"s": 115,
"t": 116,
"u": 117,
"v": 118,
"w": 119,
"x": 120,
"y": 121,
"z": 122,
"{": 123,
"|": 124,
"}": 125,
"~": 126,
"…": 127,
"⊕": 208,
"α": 209,
"β": 210,
"🖤": 211,
"💀": 212,
"⬆": 224,
"⬇": 225,
"🅰": 226,
"Ⓐ": 227,
"Ⓛ": 228,
"🅢": 229,
"🅣": 230,
"🅡": 231,
"🆂": 232,
"🅴": 233,
"🅻": 234,
"✔": 235,
"🗹": 236,
"⊙": 237,
"👆": 238,
"👇": 239,
"⬅": 240,
"➡": 241,
"🅱": 242,
"🄲": 243,
"🅁": 244,
"Ⓔ": 245,
"Ⓝ": 246,
"Ⓣ": 247,
"🅂": 248,
"🄷": 249,
"🄵": 250,
"🛈": 251,
"❔": 252,
"❕": 253,
"👈": 254,
"👉": 255
}
}