• Line Collection Raster #258 - Really useful for displaying tens of thousands of contours
• Modes for selector Sychronizer and use of arrow key #262
• Setting the coordinate reference system #268
• Plot frame #313
• make jupyterlab-sidecar a nb dependency? #299
• cameras and controllers refactor #382
• Histogram vmin vmax widget  #166
• Look into sharing storage buffers  #126
• bidirectional link should not be allowed if the event is a pygfx event (like click) because that's nonsensical  #107
• handling numpy int types #102
• Implement fancy indexing for GraphicFeatures #101
• Tests
• More ColorsFeature handling  #191
• Add to ImageWidget and ImageGraphic #108
• refactor ImageCmapFeature #132

Probably not going to happen:

• interactivity, continued #100
• multi-selecting with Interaction.link() #116 - Users should just use the low level feature.add_event_handler() for anything more complex than what link() allows.