it will be good to have separate colors for active tab and hovered element.
I'm not sure I understand the request. Can you elaborate?
Can i make hovered element and active tab have the different colors ?
I changed the one setting in the custom theme
and here what it becomes
The only way to customize the color of the tab is by assigning a custom color to it in the connection properties. All tabs which do not have a custom color will use the default color from the color theme (which can be tweaked, of course). The hover color of inactive tabs is a color variant of the configured color and cannot be explicitly configured.