Deprecated interface elements

• Particle.

• Arrow (old).

• Spring (old).

• Image (old).

• Text (old).

• Polygon (old).

• AnalyticCurve (old).

• ParticleSet.

• ArrowSet (old).

• SpringSet (old).

• ImageSet (old).

• TextSet (old).

• GridPlot.

• InterpolatedPlot.

• ContourPlot.

• SurfacePlot.

• VectorField_old.^?

• Plane_old.

• Cube_old.

• Sphere_old.

• Cylinder_old.

• Cone_old.

• Surface_old.

• AnalyticSurface_old.