Photoshop Tutorials - Fill Command
You can perform various actions to change the selected area and one of them is to fill it with selected color. In order to do so you can choose the Fill command in the Edit menu. You have already seen PaingBucket tool and now you probably wonder - why clone this tool. But PaintBucket tool and Fill command are different. PaintBucket fills the selection based on the adjacent pixel colors, while the Fill command fills the selection completely under any circumstances. There are some other differences between these tools as well that we will go over later.
In order to use this command you need to create the selection at first. Then you can choose one of the hotkeys. Alt+Backspace will fill the selection with the foreground color, Ctrl+Backspace will fill the selection with the background color.
There are much more options then that and you can bring up the settings of the Fill command by going to Edit > Fill. It consists of two sections: Contents and Blending. Let us check the options available for the Use setting in Contents section:
Foreground - fills with foreground color.
Background - fills with background color.
Pattern - fills with selected pattern, you can also choose Custom Pattern option.
History - the selection is filled with one of the actions used in the history palette that you choose from the History palette.
Black - the selection is filled with the black color.
50% Gray - fills the selection with grey.
White - fills the selection with white
In the Blending section you will see the Mode and Opacity options, and Preserve Transparency checkbox. When Preserve Transparency is checked the transparent parts of the selection are not filled and remain transparent