Tool : Description
Use Free-Form Select to select any irregularly shaped part of the picture. Drag the pointer to select the part of the picture you want to work with.
Use Select to select any square or rectangular part of the picture. Drag the pointer to select the part of the picture you want to work with. 
Use the Eraser to erase areas of your picture. Click Eraser, click an eraser size below the toolbox, and then drag the Eraser over the area of the picture that you want to erase. Any areas that you erase will be replaced by the background color.
Use Fill With Color to fill the entire picture or an enclosed shape with color. Click Fill With Color, click a color in the Color box, and then click inside the area you want to fill.
Use Pick Color to set the current foreground or background color. Click Pick Color, and then click the color in your picture that you want to set as the foreground color, or right-click the color in your picture that you want to set as the
background color.
Use the Magnifier to zoom in on a section of your picture. Click Magnifier, and then click a zoom level just below the toolbar. 
Use the Pencil to draw thin, freeform lines or curves. Click Pencil, click a color in the Color box, and then drag the pointer in the picture to draw. To draw using the background color, right-click while you drag the pointer.
Use the Brush to paint thick or shaped freeform lines and curves. Click Brush, click a shape just below the toolbar, click a color in the Color box, and then drag the pointer to paint. 
Use the Airbrush to create an airbrush effect in the picture. Click Airbrush, click a spray pattern just below the toolbar, click a color in the Color box, and then drag the pointer to paint. 
Use Text to enter text in the picture. Click Text, and then, in the options box just below the toolbar, click a background style. Click a color in the Color box, and then click in the picture and type your text. You can resize and move the text box, and change the font,font size, and text formatting until you click another tool or click outside the text box
within the picture.
Use Line to draw a straight line. Click Line, click a line width in the options box just below the toolbar, click a color in the Color box, and then drag the pointer in the picture to draw the line. To draw a line using the background color, right-click while you drag the pointer.
Use Curve to draw a smooth, curved line. Click Curve, click a line width in the options box just below the toolbar, click a color in the Color box, and then drag the pointer in the picture to draw a straight line. After you have created the line, click the area in the picture where you want the arc of the curve to be, and then drag the pointer to adjust the curve.
Use Rectangle to draw rectangular shapes. Click Rectangle, click a color in the Color box, and then click a rectangle style in the options box just below the toolbar.
To draw a rectangle, drag the pointer diagonally in the direction you want. To draw a square, hold down SHIFT while dragging.
Use Polygon to make a shape with any number of sides. Click Polygon, click a color in the Color box, and then click a polygon style in the options box just below the toolbar.
To draw a polygon, drag the pointer to draw a straight line. Then, click each point where you want additional sides to appear. Double-click when you're done. To create sides with 45- or 90-degree angles, hold down SHIFT while making sides.
Use Ellipse to make ellipses and circles. Click Ellipse, click a color in the Color box, and then click a fill style in the options box just below the toolbar.
To draw an ellipse, drag the pointer. To draw a circle, hold down SHIFT while dragging.
Use Rounded Rectangle to draw rectangular shapes with rounded edges. Click Rectangle, click a color in the Color box, and then click a fill style in the options box just below the toolbar.
To draw a rounded rectangle, drag the pointer diagonally in the direction you want. To draw a square with rounded edges, hold down SHIFT while dragging.
The Color box indicates the current foreground and background colors. To paint with the selected foreground color, drag the pointer. To paint with the selected background color, right-click while you drag the pointer. To change the current foreground color, click an available color square. To change the background color, right-click an available color square. To mix a new color, double-click in any color square, and then click Define Custom Colors.
