Polygon Tool:

You can draw a ploygon by clicking at each vertex.

Rectangle with rounded corner:

You can draw a rectangle with rounded corner which starts at the first clicking and ends at the mouse releasing.

Oval Tool:

You can draw an oval which starts at the first clicking and ends at the mouse releasing.

Rectangle Tool:

You can draw a rectangle which starts at the first clicking and ends at the mouse releasing.

Arc Tool:

You can draw an arc which starts at the first clicking and ends at the mouse releasing.

Line Tool:

You can draw a straight line which starts at the first clicking and ends at the mouse releasing.

Brush Tool:

You can use any color you want with various shapes of brush.

Bucket Tool:

You can fill an area with a foreground color.

Eraser Tool:

You can erase a picuture by clicking the mouse and holding it and dragging it.

Pen Tool:

This is the thinnest color pencil.

Hand Tool:

You can move a picture on the canvas and display unseen part by dragging.

Color Picker Tool:

You can pick a color and use it to set one of foreground, background or line color.

Text Tool:

When you want to key some taxts in, use this. Under Text menu, you can change the style, size and font of text.

Zoom Tool:

You can magnify the canvas by clicking on it.  With shift key, you can do the opposite.

Polygon Select Tool:

You can select an area needed with a polygon.

Oval Select Tool:

You can select an area needed with an oval.

Rectangle Select Tool:

You can select an area needed with a rectangle.

Freehand Select Tool:

You can select an area needed.