improve background color for better readibilty

[NAIMISHA38]

Summary

This PR improves the UI readability by updating the background color.

Changes

• Updated background color for better user experience

Testing

• Verified the UI after change
• No breaking changes observed

Notes

This is a small UI improvement aimed at enhancing readability.

AI Usage

I used AI assistance (ChatGPT) to understand the issue and get guidance on implementation. I carefully reviewed and modified the code to ensure correctness and simplicity. All changes were tested manually after implementation.

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[rtibbles]

Not in response to any issue, directly goes against our KDS styling.