This is the most basic option for any Photoshop User, the Brush Tip settings allow you to modify the way to add colors on a Photoshop document using the Brush Tool. By clicking on the Brush Preset Picker in the default Options Panel you will see several built-in presets. On many of the presets you can easily adjust two very important values:
* Master Diameter increases or decreases the size of the brush tip. The default shortcuts to increase or decrease are the Left Bracket key and the Right Bracket key respectively. Photoshop CS4 enables a dynamic way of doing it by Ctrl + Option (Mac) + Click or Alt + Right Click (Win) and Drag.
* Hardness increases or decreases the brush tip’s border strength, 0% means a really soft border (color fades out) and 100% a precise border. The shortcuts to increase or decrease hardness percentage are the Left Bracket key and the Right Bracket key respectively. In CS4 you can dynamically modify this value by Ctrl + Option + Shift (Mac) + Click or Alt + Shift + Right Click (Win) and Drag.
You can even combine Foreground and Background colors (we will see this feature forward). Most of the time the color that is applied by using the brush tip is the Foreground Color.