Expected behavior
After changing the font size, the application will display the font size we selected, such as large, then the application must display a large font size.
Actual behavior
the "font size" feature on a simple calendar app simply does not work, even though I've changed several times from small to large, but the letters remain unchanged.
How to reproduce
Open simple calendar, click on settings, after that scroll down and find "font size" feature.
Browser: simple calendar v3.4.2
Operating system: android 5.1
Smartphone: Oppo f1s
