Acer Stream User Manual page 21

A red background indicates that the widget may not be placed in the chosen
position, usually because widgets may not overlap. The background is green
when the position can be used.
Drag the widget to the left or right edge of the screen to add it to either
extended screen. Drag it to the trash icon to remove it from the screen.
Acer Widget Settings
From the widget overlay screen, tap the menu button and select Acer Widget
Settings to see settings for Acer-designed widgets.
Changing the wallpaper
On the home screen, simply tap and hold the current
wallpaper. A screen showing alternative wallpapers and
sounds will be displayed.
Select a wallpaper from the first row, or open your own
pictures from the second row. Tap the image you wish to
use as your smartphone's wallpaper. If you choose an
image that is not the correct size, you will be asked to crop
the image to the correct size. Tap and drag the box until
you have selected the part of the image you want.
The home screen 21