kennypete · February 28, 2025 19:35
diff --git a/_Freezing_a_font.asciidoc b/_Freezing_a_font.asciidoc
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diff --git a/five_features.jpg b/five_features.jpg
diff --git a/fontfreeze_generate.jpg b/fontfreeze_generate.jpg
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Feature	Description	Rationale
aalt	Access All Alternates - provides a menu of all alternate glyphs for a character.	Keep all defaults unless specifically overwritten.
calt	Contextual Alternates - replaces glyph sequences with designed ligatures based on surrounding characters.	This enables ligatures, which I specifically do not want.
case	Case-Sensitive Forms - shifts punctuation marks up to work better with capital letters.	Leave punctuation alone (and consistent).
cv01	Character Variant 1 - provides alternative style for lowercase 'a'.	The default a glyph is preferrable, IMO.
cv02	Character Variant 2 - provides alternative style for lowercase 'g'.	The default g glyph is preferrable, IMO.
cv03	Character Variant 3 - provides alternative style for lowercase 'i'.	cv05 is my preference for the i glyph. This cv03 one produces a sans serif one.
cv04	Character Variant 4 - provides alternative style for lowercase 'i'.	cv05 is my preference for the i glyph. This cv04 one produces a strange looking gglyph.
cv05	Character Variant 5 - provides alternative style for lowercase 'i'.	cv05 is my preference for the i glyph because it has similarities to the shape of the default j and l glyphs, so (right angled top, curved bottom) so looks consistent and is easily distinguished from others.
cv06	Character Variant 6 - provides alternative style for lowercase 'i'.	cv05 is my preference for the i glyph. This cv06 one produces a more extreme version of cv05, with a long curved bottom.
cv07	Character Variant 7 - provides alternative style for lowercase 'l'.	The default l glyph is preferrable, IMO.
cv08	Character Variant 8 - provides alternative style for lowercase 'l'.	The default l glyph is preferrable, IMO.
cv09	Character Variant 9 - provides alternative style for lowercase 'l'.	The default l glyph is preferrable, IMO.
cv10	Character Variant 10 - provides alternative style for lowercase 'l'.	The default l glyph is preferrable, IMO.
cv11	Character Variant 11 - provides alternative style for the number '0'.	The default (slashed) 0 glyph is preferrable, IMO.
cv12	Character Variant 12 - provides alternative style for the number '0'.	The default (slashed) 0 glyph is preferrable, IMO.
cv13	Character Variant 13 - provides alternative style for the number '0'.	The default (slashed) 0 glyph is preferrable, IMO.
cv14	Character Variant 14 - provides alternative style for the number '3'.	This alternate makes the 3 glyph more distinctive by making the top flat. It’s 50/50, I think, but I kind of like it.
cv15	Character Variant 15 - provides alternative style for the asterisk '*'.	The default * glyph is preferrable, IMO.
cv16	Character Variant 16 - provides alternative style for the asterisk '*'.	The default * glyph is preferrable, IMO.
cv17	Character Variant 17 - provides alternative style for the tilde '~'.	The default ~ glyph is fine, IMO.
cv18	Character Variant 18 - provides alternative style for the percent sign '%'.	The default % glyph is much better, IMO. This cv18 variant has no 'holes' in the o parts of the percentage sign, so looks odd.
cv19	Character Variants 19 and 20 - provide alternative styles for specific characters (font dependent); in FiraCode those are for `⇐` into (cv19) `≤` (U+2264) or (cv20) `⇐` (U+21D0).	Neither are wanted. (That applies to all of the options through to cv28, inclusive, plus cv32, which are all ligature-related.)
cv20	Character Variant 20 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv21	Character Variant 21 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv22	Character Variant 22 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv23	Character Variant 23 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv24	Character Variant 24 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv25	Character Variant 25 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv26	Character Variant 26 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv27	Character Variant 27 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv28	Character Variant 28 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
cv29	Character Variant 29 - provides alternative style for curly braces '{}'.	This provides a subtly different left curly bracked `{` and right curly bracket `}`.
cv30	Character Variant 30 - provides alternative style for the vertical bar '\|'.	This would create a very long vertical line, which is messy (IMO).
cv31	Character Variant 31 - provides alternative style for parentheses '()'.	This would create very rounded left and right parehtheses, which looks odd (IMO).
cv32	Character Variant 32 - provides alternative styles for specific characters (font dependent).	Refer cv19, above. This is another ligature-specific feature.
dnom	Denominators - formats numbers for the bottom part of fractions.	This is used with frac and numr to manipulate the appearance of fractions typed as character sequences. (E.g., presenting `1/2` as `½` (U+00BD).) This is not wanted for all sorts of reasons.
frac	Fractions - creates diagonal fractions from separate numerator and denominator.	This is used with dnom and numr to manipulate the appearance of fractions typed as character sequences. (E.g., presenting `1/2` as `½` (U+00BD).) This is not wanted for all sorts of reasons.
hwid	Half-width - adjusts glyphs to half-width form, primarily for East Asian typography.	I don’t need this.
numr	Numerators - formats numbers for the top part of fractions.	This is used with frac and numr to manipulate the appearance of fractions typed as character sequences. (E.g., presenting `1/2` as `½` (U+00BD).) This is not wanted for all sorts of reasons.
onum	Old-style Numerals - replaces default numerals with figures that have varying heights and alignments.	This makes numerals appear variably horizontally, which may be wanted for some contexts, but for monospaced fonts and clarity, not (IMO).
ordn	Ordinals - automatically formats 1st, 2nd, 3rd with proper superscript styling.	Replacing default alphabetic glyphs with the corresponding ordinal/superscript forms is not wanted.
salt	Stylistic Alternates - provides alternative designs for characters that don’t fit in other categories.	It’s unclear whether this would add any value, so it’s 'x'.
sinf	Scientific Inferiors - formats numbers as scientific inferior figures.	This is another feature that presents a character other than what the code point would suggest it is, so is not wanted.
ss01	Stylistic Set 1 - provides alternative style for lowercase 'r'.	This removes some of the RHS of the 'r' character, making it harder to read.
ss02	Stylistic Set 2 - applies a predefined set of stylistic alternatives to characters.	If `calt` is active (it’s not) this enables another variant of ligatures for `⇐`, but as `calt` is inactive, this is not honoured even if it is checked, so there’s no point doing so.
ss03	Stylistic Set 3 - provides alternative style for the ampersand '&'.	The default ampersand for FiraCode is a curly/rounds one whereas the `ss03` version is much clearer (IMO).
ss04	Stylistic Set 4 - provides alternative style for the dollar sign '$'.	This is a bit marginal, but the dollar sige without the vertical bar inside the S, so with the top and bottom only with vertical, small strokes, is a bit nicer (IMO).
ss05	Stylistic Set 5 - provides alternative style for the at sign '@'.	The @ with an almost full “circle” surrounding the a is not as nice as it only half the way (IMO).
ss06	Stylistic Set 6 - applies a predefined set of stylistic alternatives to characters.	This enables different presentation of `\\`, with the alternative being a thinner left reverse solidus. There does not seem much point (and it also detracts from the literal code points (2x U+005C).
ss07	Stylistic Set 7 - applies a predefined set of stylistic alternatives to characters.	These are more ligature-related variants involving tilde and `!=`, so with not wanting ligatures, are not wanted.
ss08	Stylistic Set 8 - applies a predefined set of stylistic alternatives to characters.	Similar to `ss07`, but for `=` and other ligature combinations - not wanted.
ss09	Stylistic Set 9 - applies a predefined set of stylistic alternatives to characters.	More ligatures' variants like `ss07` and `ss08`.
ss10	Stylistic Set 10 - applies a predefined set of stylistic alternatives to characters.	This one is more marginal. If it was in writing, I’d probably activate it but, for code, wouldn’t. It is the “Fl”, “Tl”, “fi”, “fj”, “fl”, and “ft” combinations. It looks a bit odd in code having the strokes of, for example, “f” and “i” join, so I’d leave this feature as no.
subs	Subscript - replaces characters with subscript versions.	Once again, this makes a character look like a different code point to what it is in practice. If you really want a subscript numeral, use the explicit code point (they exist).
sups	Superscript - replaces characters with superscript versions.	For the same reason as `subs`.
tnum	Tabular Numbers - adjusts numbers to all have the same width for better alignment in tables.	This is n/a for a monospaced font.
zero	Slashed Zero - replaces the standard '0' with a slashed version to distinguish it from the letter 'O'.	FiraCode’s default 0 glyph is a slashed version anyway.