png only has rectangles instead of font
hope it is okay to post this here, haven't found anything else about it so far. When using graphviz through graph_models in django-extensions, a png is generated, but it has only rectangles instead of proper characters. Graphviz and graphviz-dev were installed in a django docker image based on django-cookiecutter, which uses an alpine based image. I tried installing fontconfig but it didn't help so far.