Install gir1.2-graphene-1.0 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-graphene-1.0
Description:
library of graphic data types (introspection files)
Graphene provides a small set of mathematical types needed to implement graphic libraries that deal with 2D and 3D transformations and projections. . This library provides types and their relative API; it does not deal with windowing system surfaces, drawing, scene graphs, or input. . This package can be used by other packages using the GIRepository format to generate dynamic bindings.
Homepage: https://ebassi.github.io/graphene/
Version: 1.8.0-1
Section: introspection