To activate Manga, Megapck and Watercolor photoshop brushes in room 403, 404 and 413

1. Open the Brushes panel in Photoshop by going to Window > Brushes.
2. Click the hamburger menu and select manga ( repeat step two for megapack and watercolor )

3. Click OK

4. Your new brushes will now be available in the Brushes panel for you to use.

    

   To read more on Brush and Brush presets click here