The Continuous Line
The 
button indicate that discontinuous line, which modify drawing function as following:
- In the free line and the free line with the pen pressure, between each point does not draw(no-continuous line) when the main button drag.
- In shapes(including rectangle, ellipse, and parallelogram), between each control point does not draw(no-continuous line)
- In the selecion, the shape of selection is always rectangle.(the
button is indicated.)
The 
button indicate that continuous line, which modify drawing function as following:
- In the free line and the free line with the pen pressure, between each point draw(continuous line) when the main button drag.
- In shapes(including rectangle, ellipse, and parallelogram), between each control point draw(continuous line)
- In the selecion, the shape of selection is the free style.(the
button is indicated.)
