To improve readability, we can activate the "High Contrast Text" feature on the Xiaomi smartphone, which displays text with a thicker black border to make it easier to read.

Note: This feature can be found under the menu item/section "Experimental", which indicates that it may not be fully developed and probably does not work properly or is adapted to the entire Android system.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Additional settings
Step 3:  Tap on  Accessibility
Step 4:  Tap on  Vision
Step 5:  Enable or disable  High contrast text
  1. Open the Settings
  2. Tap on Additional settings
  3. Tap on Accessibility
  4. Tap on Vision
  5. Enable or disable High contrast text

Xiaomi Instructions