Foundations
Button states
One button in each of its states; the first is live. What it shows and what paints each state are in the inspector.
Slider
The bar is the handle: drag anywhere on it, or type the value.
Drag a bar or scrub its value; past an end it gives;
Shift snaps to the grid
Dropdown
One choice from a list; the list opens on the level above.
Open a field and choose; type to jump, or to search a
long list
Colour picker
Five colours on one wheel; a rule keeps them in harmony. Its parts assemble a dialog. The square under it moves the chosen colour too.
Drag a handle or a slider; save one colour, or the
palette