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Questions tagged [harfbuzz]

{harfbuzz} is an OpenType text shaping engine used in software like Firefox, Chromium, XeTeX, and LibreOffice. The HarfBuzz mode only loads text fonts.

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4 votes
2 answers
334 views

How can I start a LuaTeX-non-hb engine?

Writing and compiling documents, I noticed that sometimes "LuaTeX-1.18.0" is producer of the document, and in other cases it is "luahbtex-1.18.0". But I fail to find the switch, ...
Keks Dose's user avatar
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4 votes
1 answer
218 views

Package luacolor disables chickenize

I really would like to get my readers attention by printing one word in rainbow colors. Usually that works using the chickenize package. MWE: \documentclass{article} \usepackage{chickenize} \...
Keks Dose's user avatar
  • 31.1k
4 votes
2 answers
258 views

Dagesh cannot be coloured independently of the Hebrew letter in LuaLaTeX

Based on this question, I've managed to colour separately different Hebrew diacritics, called niqqud and teamim. However, recently I've discovered that this only works with vowels and cantillation ...
Kazi bácsi's user avatar
0 votes
1 answer
96 views

Core dump of TeX: "realloc(): invalid next size", TeXlive 2023

I'm running TeXlive 2023, fully updated, under Linux (openSuse Tumbleweed). I'm looking into variable fonts (see here: Recursive Font, multiple axes, fontspec, texlive 2022). I downloaded a variable ...
Keks Dose's user avatar
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5 votes
1 answer
186 views

Unable to Disable `colr` Feature With HarfBuzz Renderer From the `fontspec` Package

I noticed that if you use the Renderer = HarfBuzz fontspec option, the colr OpenType feature automatically gets disabled. If you use the default renderer, the feature does not get enabled but you can ...
Amarakon's user avatar
  • 165
4 votes
1 answer
525 views

fontspec optical sizes

I am trying to set up variable fonts on LuaLaTeX via the fontspec package. I am trying to get the font size and the optical size (opsz) to have nearly the same value. (I am aware that the opsz ...
User23456234's user avatar
  • 1,864