Instructions
Access the BrawlTools website and download the BrawlBox program. Double-click on the "BrawlBox.exe" file to start the application.
Click on "File" from within the main toolbar to expand the drop-down menu. Click on "Open" and browse to the folder containing the model or texture file that you want to edit. Double-click on the file to open it in BrawlBox.
Expand the various files by clicking the "Data" folder on the left-hand side of the BrawlBox application window. Right-click the file that you want to edit and select "Export." Click the "Save" button to export the model or texture file.
Exit or minimize the BrawlBox program. Browse to the location of the exported model or texture file. Open the file in the desired image editing program. Edit the image until you are satisfied with the results. Save the file and exit the image editing application.
Return to the BrawlBox program and click on the model or texture file that you exported in Step 3. Right-click on the file name to open the drop-down menu. Click on "Replace" and browse for the folder that contains the image you edited in the previous step. Double-click on the file to import it into BrawlBox.
Select "Save" under the "File" drop-down menu on the main BrawlBox toolbar to update the in-game model or texture file.