Change Layer dialog background color

I’m looking to change the background color of the Layer dialog and other dialog boxes (circled) but cannot find where or how I do this. I’ve searched everywhere on here and tried all the settings currently set to black or dark gray in Options>Appearance, Options>Colors and Options>Advanced but came up blank.

I’m using a custom Gray theme and want the dialog background to be a lighter gray, but it’s fixed on black. I thought it might be the main Windows theme but it’s the same in light or dark mode.

Any help much appreciated.

Hi Simon -
That’s the Rhino.Options.UiPaintColors.EditBoxBackground setting in the advanced options.

Had some issues working it out but got a handle on it now. Thanks.