# 
Libron
> [!NOTE]
> If this font has been useful to you, please **star the repository** so I know it is being used. Please also consider [a donation](https://nicoverbruggen.be/donate) to support the project, which I work on in my free time. It makes a big difference. **Thank you!**
**Libron** is a modified version of [Readerly](https://github.com/nicoverbruggen/readerly) with various edits to give the font a more neutral look, which is (in turn) based on [Newsreader](https://github.com/productiontype/Newsreader).
The original font was imported and has been manually edited using [FontForge](https://fontforge.org). All modified source files are available in the `src` directory.
## Specimen
## Reading sample
## General changes
Libron started as an attempt to make Readerly feel a little more appropriate for reading on e-readers. Some of the more expressive details that are part of Readerly stood out more than I wanted.
In particular, some of the serifs and capital forms seemed too distracting as I was reading.
What started as a few tweaks to the serifs to make the different font files a little more neutral has gradually developed into a broader reworking of Readerly's design:
- Many uppercase and lowercase letters, figures and punctuation marks have now been redrawn or refined across all four styles.
- Spacing and kerning have been adjusted alongside the outlines to create a more even reading texture.
- Accented characters have been rebuilt where necessary, so that they remain consistent with their base glyphs.
- Synthetic small caps were added to the font, based on scaled down capitals for each four styles.
The result keeps Readerly's proportions and overall character, but has a calmer and more neutral appearance intended specifically for reading books. As such, it is a successor to Readerly.
## Building Libron
### Automatic builds
When a commit of Libron is tagged, a version is automatically released. The version number set in [VERSION](./VERSION) is used when building the font, and is embedded within the font.
The following variants are generated:
- **Libron** for Kindle, other e-readers and desktop (`TTF`)
- **Libron R** for [KOReader](https://koreader.rocks/) (`TTF`) with relaxed line spacing
- **Libron H** for Linux and Windows (`TTF`) with `ttfautohint` hinting
- **KF Libron** for [Kobo devices](https://github.com/nicoverbruggen/kobo-font-fix) (`KF TTF`)
Besides the TrueType fonts files, there's also:
- Libron for [CrossPoint Reader](https://github.com/crosspoint-reader/crosspoint-reader#custom-sd-card-fonts) (`cpfont`)
- Libron's webfont variant (`WOFF2`)
### Building locally
You can run `./local-build.sh` if you have Podman or Docker installed to build the definitive fonts.
The wrapper prefers Podman and falls back to Docker if Podman is not installed. Run `./local-build.sh --help` for options and output paths.
Every build checks combining-accent shaping with HarfBuzz in all four styles, including the Kobo and relaxed variants when generated. The checks cover Lithuanian stress marks, the font's Latin letters with above- and below-marks, stacked marks, equivalent Unicode encodings, and ordinary Lithuanian text with OpenType features. The checks do not modify fonts. Line spacing and Windows metrics retain the existing build settings. Text with tall accent stacks may need more line spacing in the reader; the shaping checks do not test reader-specific clipping.
Inside the build container, run `python3 scripts/make_proof_sheet.py --check` to repeat the checks. To compare with an earlier build, use `python3 scripts/make_proof_sheet.py --compare-dir ` to generate proofs in `proofs/`.
If you have all dependencies installed locally, you can also use `./build.py` to build the font with Python.
## License
This font is available under the [OFL license](./LICENSE).
Libron is a Reserved Font Name. Modified versions must use a different primary font name unless Nico Verbruggen gives written permission.