Add fallback avatar color hashing by creator id

[Chucks1093]

Summary
Add fallback avatar color hashing by creator id

Scope

• generate deterministic fallback avatar color from creator id\n- keep contrast readable for initials\n- avoid random color flicker

Acceptance Criteria

• scoped change is implemented with no unrelated file churn
• docs/tests are updated where applicable
• contributor can validate the outcome locally

Contributor coordination: if you pick this up, reach out in Telegram for updates or clarification: https://t.me/accesslayerorg

[Johnpii1]

@Johnpii1 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hello Sir,

I hope you’re doing well.

I came across your project and was impressed by the vision behind it. I’d love the opportunity to contribute and collaborate with you.

I have experience building responsive, user-friendly interfaces and improving performance across devices. I’m also a fast learner, comfortable with modern web tools, and focused on writing clean, scalable code.

I’m especially interested in contributing to frontend development and enhancing the overall user experience.

Please let me know the next steps—I’m ready to get started immediately.

Thank you for your time.

Best regards,
Johnpaul

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Johnpii1 to this issue.

[drips-wave]

Congratulations, @Johnpii1! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @Johnpii1: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊

[drips-wave]

This issue has been completed by @Johnpii1 as part of the Stellar Wave Program's 4th Wave 🥳

😎 @Johnpii1: You earned 100 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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