Blur Tool
The Blur
Tool unfocuses image areas:
In the Toolbox, select the Blur
Tool.
Choose brush size and style.
Set the tool's strength.
Drag on the image.
In the Options bar, you can also specify the effect's "Mode".
Smudge Tool
The Smudge
Tool spreads and mixes content of image areas:
In the Toolbox, select the Smudge
Tool.
Choose brush size and style.
Set the tool's strength.
Drag on the image.
In the Options bar, you can also specify the effect's "Mode"
Sharpen Tool
The Sharpen
Tool focuses image areas:
In the Toolbox, select the Sharpen
Tool.
Choose brush size and style*.
Set the tool's strength.
Drag on the image.
In the Options bar, you can also specify the effect's "Mode"