Straight Lines have the following general appearance properties.
The width of the line (in pixels). You can change the width by clicking the up and down arrows to the right of the field, or by entering another value in this field.
If you make the line more than 1 pixel wide, it needs to be solid.
The style of the line. You can choose from the following line styles:
To change the style, choose a style from the menu to the right of this field.
The color of the line.
For help on the remaining properties tabs, see Defining Common Object Properties.