Vector Tool\n

Vector patterns for buttons.

This is still pretty crude (getting better).   Click 'Line' to begin drawing
a line.  Click B-1 in box to make vertices of line. Click B-2
instead on the final vertex.   B-3 aborts.

'Move' changes from drawing to dragging.

'Delete' causes line to disappear if you click on it.

'Light'  causes line segment shading to toggle when you click on it.
Vector patterns can have two shades.

'Move Vert' drags a vertex around.  
This  resets the shading (a bug). So do shading
after dragging vertices.

\n The Bottom row of buttons sets the Active-Up, etc, style for
the current page of the current Button Style.  Click on one of
these after you have drawn a shape.

\n Draw only one line.