Wireframe, Vertices Only and Faces are now all part of a drop down "Draw Mode". Here you can specify whether faces, wireframe, and or vertices are all drawn or not. There's also an option to change if wireframe/vertices are drawn as a solid color, rather than using the model's vertex colors and textures.
Gizmo snapping is now split up into three numeric updowns. Only the numeric updown for the current gizmo will be shown.
Wireframe size now has a numeric updown. Wireframe size/Vertex size will only show their respective numeric updowns when their draw modes are enabled.
Added Gizmo Tool dropdown, and an option to select None as the current tool. This replaces the Show Gizmos menu item, and is used instead to hide gizmos.
Changed Gizmo hotkeys to W (translate), E (rotate), and R (scale). These are also visible in the Gizmo Tool menu items, however the hotkeys must be handled manually, because WinForms throws an exception if you try to hotkey a standard key without any modifiers. sigh.
Because R is now reserved for Scale, Debug Ray Picking now uses the P key.
Fixed numeric updowns internally storing the last edited value performed by the user, even if that value doesn't honor the DecimalPlaces property. During Form.Load, all numeric updowns have their Validating event bound, this event will force-round the value of the numeric updown. Note that the ValueChanged event will still fire before Validating.
Scene.*Changed events now only fire if Initialized is true.
Added menu item to enable or disable texture rendering.