Hi HN! I frequently find myself needing to label small batches of images with class labels as well as bounding boxes and masks. Last year, I developed a Python library to do that sort of thing relatively quickly using a command line application that launched a web interface. But I often want to do it right inside the Jupyter instance that I'm already in. So I recently developed the functionality into a Jupyter Widget. To make it easy to try out, I've made a short Colab notebook that shows what it can do.