The Editor is the largest single area in the Wallpaper window, the place where you create and modify patterns. The Editor displays either a true size or magnified view of the pattern in the Easel. The Color Selector shows the colors used by the pattern in the Editor. The Toolbox gives you your choice of painting tools with which to work.
You can scroll in the Editor one horizontal or vertical pixel at a time using the Arrow keys on your keyboard, eight pixels at a time using the Option-key with the Arrow keys, or you can scroll more quickly and on diagonals by using the Command-key with a mouse drag via the grabber-hand tool.
You paint in the Editor by clicking or dragging, just as you would in a regular paint program. What happens when you click depends on what tool you are using. To choose a tool, mouse-down on the Toolbox (the hand). A tool menu, similar to the drawing palettes of other paint programs, will pop up. Choose the tool you want by dragging your mouse to it and releasing the mouse.
One of the colors in the Color Selector is always outlined, indicating the selected color. The Toolbox tools that draw will draw in this color. To change the selected color, click another color. You can move through your 256 colors, 16 at a time, by using the Control key with Arrow keys.
To modify a color, or change one of the Color Selector’s blank spaces to a new color, double-click its space. A standard Macintosh Color Picker dialog will appear. Create the color of your choice using both the wheel and the vertical scroll bar, then press OK, or press Cancel if you change your mind.
If the color you modified already appears in the pattern, all the pixels of that color will change to the new color. This is an easy way to change the color-scheme of the entire pattern.