converter cli + tests

.gitlab-ci.yml

@@ -125,7 +125,7 @@ pages:
     - DEBIAN_FRONTEND='noninteractive' apt install -y texlive-latex-recommended texlive-latex-extra texlive-science pdf2svg
     - pip install -U Pillow
     - pip install -e ./
-    - apt install -y python-opengl xvfb # Virtual framebuffer for GL stuff.
+    - apt install -y xvfb # python-opengl  # Virtual framebuffer for GL stuff.
     - rm -rf tests/tests_images # blow tests_images folder if exists.
     - cd tests
     - xvfb-run -s "-screen 0 1400x900x24" python -m unittest test_slider.py