For example, you can change the size of the icons and add a background picture to a window in icon view.
You can change an individual window or all the windows that use global options.
To change an individual window, make the window active and choose Show View Options from the View menu. Select "This window only," then select the options for the folder.
If a window is in column view, you can change the size of columns by dragging the bottom of the column divider.