Change the color of Buttons on the header

[shrutigolwalk0109]

Is there an existing feature request for this?

• I have searched the existing feature requests

What feature would you like to see?

Can we change the color of the login, Signup, and calendar same as the website theme, I guess it looks better and we can also add some hover effects on these buttons.
Kindly Assign me this Issue under GSSOC'24, I would like to work on it.

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• I agree to follow this project's Code of Conduct
• I'm a GSSoC'24 contributor
• I want to work on this feature

[github-actions]

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