how can i remove gradients and how a normal dark theme with a readable find bar

[peak atlas]

sounds very silly that i need to ask this. but i cant find any direct way to remove the color selection/gradient. i just want the default dark theme that usually ships with firefox and where the find bar is readable. right now my find bar is white text on white background 🤷‍♂️

[pale fog]

Right-click the sidebar > edit theme

then right click any colour in the picker to remove them. On top pick the moon for dark theme.

if that does not help, it might be needed to change your OS theme to dark mode (some UI elements currently pick this up instead of what you pick in Zen)