Why does my dcc.Dropdown background colour change, when I generate a plot or table in my Dashboard?

[AIMPED]

I think you are refering to the background of the dropdown options?

Have a read here:

How to colorize Dropdown field in Dash?

Hi, Can I colorize a dropdown field (not the whole menu) in Dash ? What about the selected text only ? Thanks!

and here:

I can't change color of dropdown menu

I have Dash 1.1.1 and I am trying to change the color scheme to have a black background and while text. I’ve managed to get everything to work except for the Dropdown elements. The initial look of Dropdowns is fine, except the color of the default values is too dark: [Screenshot%20from%202019-09-03%2011-46-02] However, if I select one of the dropdown menus, the backgrounds are white: [Screenshot%20from%202019-09-03%2011-50-12] How do I make the selected menus also have black background and…