**Code formatting improvement** in the display initialization function:
- Reformatted a compressed one-liner containing RGB screen test code into properly structured, readable lines
- Split the color test sequence (RED → GREEN → BLUE) across multiple lines with preserved comments and delays
- **No functional changes** - the code behavior remains identical
- **Improved readability** - the color test sequence is now easier to understand and maintain
- **Better debugging** - individual test steps are clearly visible, making it easier to modify or troubleshoot the display initialization routine