Change app name and icon for canvas apps
Customize a canvas app by changing its name and icon.
Create an app, or open one for editing.
Rename an app
Under General, update the app name inside the Name text box.
Change an app tile
Follow one or more of these steps:
Select a different background color from the list of options.
Select an icon from the list of default icons.
Select Browse file, select the image that you want to use, and then select Open.
For best results, use a square-shaped icon.
On the File menu, select Save to republish your app with the new settings.