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Open Sans

variable font

Open Sans sample

Originally designed by Steve Matteson of Ascender Hebrew by Yanek Iontef Weight expansion by Micah Stupak Help and advice from Meir Sadan and Marc Foley

Building fonts

# Create a new virtual env and install dependencies
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt


# Change to source dir and generate fonts
cd source
sh build.sh

Relation with Noto Sans

The Open Sans styles have been updated from Noto Sans sources. Noto Sans has 4 masters in each width and slant. The lightest Noto Sans master is lighter than the lightest Open Sans master. The two boldest master match exactly.

Mapping between Open Sans weights and Noto Sans master values:

Open Sans (GF)wghtNoto Sans (master)wght
Thin26
Light50
Regular83
Regular90
SemiBold117
Bold151Bold151
ExtraBold151Black190

To generate then Open Sans masters, the following was done to Noto Sans sources:

The Noto Sans sources are kept in the folder sources/NotoSans.

UFO that match the Open Sans masters have been generated with sources/build_masters_from_noto.sh. They are the sources used to generate TTFs with sources/build.sh.

The Hebrew glyphs and their features are not in the NotoSans UFOs.