object visibility and display toggling; added support for text; refactoring between GUI and plotter; fixed and added some in-line issues; miscellaneous fixes and improvements to docstrings, variable naming, etc.
object visibility and display toggling; added support for text; refactoring between GUI and plotter; fixed and added some in-line issues; miscellaneous fixes and improvements to docstrings, variable naming, etc.

robclewley/fovea,akuefler/fovea