Editing Tools

Color Picker:

Picks a color from a pixel in the picture. You can also pick a color by right-clicking the picture with the mouse.

Drawing tools

Pencil, Lines, Arrows, Rectangles, Ellipses, Bezier curves.

Text tool.

Fill tool:

Fill areas of similar color locally, using different modes (color,texture etc..)

Color Replace tool:

Replace areas of similar color in all the picture, using different modes (color,texture etc..)