Goto the URL opera://flags/#sidebar-site-panel, enable the flag, restart Opera, click the 3 dots at the bottom of the sidebar, scroll down to "Custom Site Panels" and add the URL for the site (whatever URL you get after logging into https://esound.app/ in a tab I assume). Then, you'll have eSound as a separate panel. It won't be added to the player panel, but should work fine as its own panel. Source: over 2 years ago

[SELF PROMO] also we have made a library called YeSvelte which supports tabler.io and daisyui themes. Source: about 1 year ago

This is nice. For more choices, if you are looking, Tabler[1] is another such component template, and I have used it to knock off visual dashboards fast. Not related; just another happy user. 1. https://tabler.io. - Source: Hacker News / about 1 year ago

YeSvelte is a powerful and flexible Svelte UI component library, designed to help developers build enterprise-grade web applications quickly and easily. With a focus on rapid application development and framework independence, YeSvelte is the perfect complement to any CSS framework. It is inspired by Tabler, a UI Kit built on top of Bootstrap css. Source: over 1 year ago

Also, we have developed a wrapper CSS on top of tabler.io and Bootstrap. Developers have access to the classes if they want to use them. Source: over 1 year ago

Looks like your issue is resolved. I can also recommend having a look at tabler.io. I use it for most of my flask apps and its very simple/nice for dashboard UI's. Hope you find it useful :). Source: over 1 year ago