to do like abstract grunge bg's you have to go to www.deviantart.com and search brushes and then download them into your photoshop folder.......and make sure you extract any that you need to........then open photoshop and click on the brush tool then go to where you would change the brush type....and click replace brushes and then open it to you photoshop folder or where ever you saved the brushes and then clock a brush and then there ya go thats how you use it and get them

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