Merge branch 'napari-join-labels' of https://github.com/danforthcente…

…r/plantcv-annotate into napari-join-labels

.github/workflows/continuous-integration.yml

@@ -21,7 +21,7 @@ jobs:
     env:
       OS: ${{ matrix.os }}
       PYTHON: ${{ matrix.python-version }}
-
+      DISPLAY: ':99.0'
     steps:
     - uses: actions/checkout@main
     - name: Set up Python ${{ matrix.python-version }}
@@ -30,6 +30,8 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
+        sudo apt install libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 x11-utils
+        /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1920x1200x24 -ac +extension GLX
         python -m pip install --upgrade pip
         pip install flake8 pytest pytest-cov pytest-qt pytest-xvfb ipython
     - name: Lint with flake8