Need Help with MMEX Theme – Sidebar & Transactions Background Won't Change

[frankieorabona]

I'm currently working on a custom dark theme for Money Manager EX (MMEX), inspired by the Steam interface.
So far, I’ve mainly modified the dashboard by tweaking master.css, but I’m struggling to apply the same changes to other parts of the interface.

The biggest issue I’m facing is that the sidebar (navigator) still has a white background and black text, even though I’ve changed the styles. Also, when I open an account, the transaction screen remains white with black text instead of adapting to the dark theme. I’ve checked both master.css and _theme.json, but I can’t seem to find a way to modify these elements properly.

I should mention that I’m not a programmer and I only have basic knowledge of CSS. Some things that might seem obvious to others aren't as clear to me, so please bear with me. If anyone could guide me in the right direction—maybe I need to edit additional files or take a different approach—I’d really appreciate it.

If necessary, I can provide the .mmextheme file for testing. Thanks in advance for any help!

P.S. I’m not sure if this is the right section to post this. If not, I kindly ask the moderators to move it to the appropriate section.