Add Custom Scrollbar and Custom Text Selection Color According to theme of the website

[pjoshi999]

Feature Description.
Add Custom Scrollbar and Custom Text Selection Color According to theme of the website

Why is this feature needed ?
Custom scrollbars and selection color are essential to improve a website's aesthetics and user experience. By aligning these design elements with the website's theme, it ensures visual consistency and branding, creating a polished and cohesive look. Default browser scrollbars and selection colors often clash with the website's style, making customization crucial for a visually appealing design. In summary, custom scrollbars and selection colors are necessary for improving aesthetics, brand consistency, user experience, accessibility, and overall website success.

Please Assign this task to me.

[DreadKnight]

@pjoshi999 I've transferred this issue to the proper repository that deals with the game's website itself. Also assigned.