Admin utility classes?

There aren’t any documented anywhere AFAIK. The only way to find them is to inspect existing parts of the UI.

I like your approach though. Way too many people try to style and brand their plugin as if it’s a totally separate application rather than trying to blend in with the Dashboard.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)