| # Generating a minimal font for devices with small space requirements |
| |
| [GlyphIGo](https://github.com/pettarin/glyphIgo) was used to generate a subset |
| of the Roboto font |
| |
| `cobalt/content/fonts` contains a script called `create_minimized_roboto.sh` |
| that can help recreate minimized font if needed |
| |
| Steps: |
| |
| 1. `cd src/cobalt/content/fonts` |
| 1. `./create_minimized_roboto.sh` |
| 1. Download `fontforge` using apt. `sudo apt install fontforge` |
| 1. In `fontforge`, navigate the menu: `Encoding`->`Reencode`->`Glyph Order`. |
| Scroll to the top, find the first glyph. By spec, this glyph is called |
| `.notdef`, and is used when this font is the default font and there glyph for a |
| character we're looking for is missing in the file. Often this will be blank |
| after the last step, which can be undesired. |
| 1. Copy `.notdef` glyph from a different font. |
| 1. Open a different font. |
| 1. Find the `.notdef` glyph. |
| 1. Select the glyph without opening it. |
| 1. Navigate the menu: `Edit`->`Copy` from the font you want to copy from. |
| 1. Switch focus to the minimized font. |
| 1. Select `.notdef` glyph. |
| 1. Navigate the menu: `Edit`->`Paste`. |
| 1. Export the font using the menu: `File`->`Generate Fonts...`, make sure that |
| the file name is correct. |
| 1. Fix any errors if found, or if you can. |
