<li>At the bottom of the toolbox, click a line width.</li>
<li>Draw a straight line by dragging the pointer.</li>
<li>Click where you want one arc of the curve to be, and then drag the pointer to adjust the curve. Repeat this step for a second arc.</li>
</ol>
<p><b>Notes</b></p>
<ul>
<li>The default background and foreground colors appear at the left in the color box. You can paint with the <adata-topic-id="gl_pbrush_fore">foreground color</a> by clicking, or you can paint with the <adata-topic-id="gl_pbrush_back">background color</a> by right-clicking.</li>
<li>Each curve must have at least one arc but no more than two.</li>
<li>You can undo any number of changes by clicking the <b>Edit</b> menu and then clicking <b>Undo</b> for each change.</li>