(Moved this from the Adobe FrameMaker forum to the Adobe After Effects forum.)
Fill and Stroke are for Shape layers only, not masks. you have to highlight a shape layer, or no layer at all in the timeline panel to make them active
in your case, first close the layer window and get back to the composition window and then deselect all layers (F2 or Ctrl+Shift+A shortcut when the timeline panel is active, or click on a blank space). now you will see them.