To change the colour of the keyboard on a samsung phone
Method 1: Change the Keyboard Theme
Open your phone Settings and tap General management.
Tap Samsung Keyboard settings
Select Theme.Choose from the available options (e.g., Solid light, Solid dark).
Method 2: Use High Contrast Keyboard
Open Settings and tap Accessibility.Select Visibility enhancements.
Tap High contrast keyboard and toggle it ON.
Choose your preferred high-contrast colour scheme (e.g., black on yellow, white on black, etc.).