ポイント増加に伴って色が変わる

[RAINeko256]

topのボタンのテキストも変えました

[vercel[bot]]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/raineko256/shugiou/BHFes9eCnnQ14QY21pFvjvU1CffP
✅ Preview: https://shugiou-git-feat-changing-color-due-to-increa-bd7018-raineko256.vercel.app

[RAINeko256]

LGTM