I've searched this topic online and find everything, except what I need.
( I don't need to change the keyboard or wall paper. )

My moms Fire HD 7 4th Gen - the layout of the main screen got changed.
The layout now has many small icons.

We want to get it back to the default which was large Apps/iconsimage.jpgimage.jpg (and recently viewed items on top) and smaller icons on bottom.

Here is a link to a photo of what we want.