1. Personalisation
One of the great things about Windows phones is the many ways you can personalise your handset to suit your use. Here are a few!
Making changes to your home screen
Swipe down > all settings
Personalisation > Colours
Choose a dark or light background, and your tile accent colour here. Make sure you scroll right down an tap on the apply button
Personalisation > Sounds
Select your ringtone here from a dropdown menu. Ringtones
Personalisation > Start
Select your background image (or none) here.

2. Personalisation Making changes to your text size
Swipe down > all settings
Ease of access
More options > text scaling
Slide the scale to suit your requirements. There is no need to save. This option will change the text size in an application, but won’t necessarily change the font size on a tile on your home screen.