How to Change Font Size on Galaxy S7 (Edge) | Change Font Style
The TouchWiz launcher lets you change font size on Galaxy S7 (Edge), as well as the font style. To change font size on the Samsung Galaxy S7 and S7 ...
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Some smartphones such as Samsung Galaxy S III have flashlight widget installed on the device. You just need to select the Assistive Light from the widget list.
If you are using a phone or tablet which doesn’t have such app or widget, you can try Tiny Flashlight + LED which is free for download in Google Play.
Note that this feature turns your camera flash into a flashlight may use battery very much, so use it when necessary