1. First, download the required brushes from the network. After starting ps, execute the Edit-Default Manager command to import brushes.
2. Create a new document with a size of 800*600 and a transparent background.
3. Select the brush tool in the toolbox and select the imported brush from the toolbar.
4. Set the brush size and smear it on the canvas until you are satisfied.
5. Execute the file-save as command, set the saving format as png, and save the file on the desktop.
6. Find the saved file on the desktop and double-click to open it to see the effect.