I apply a dark predefined style with TTMSFNCStylesManager. At designtime the styling to the TTMSFNCComboBox is done correctly. At runtime the styling is not applyed, it remains in standard windows style. The styling of a TTMSFNCColorPicker (which is also a combobox I guess) works at design- and runtime.
I have checked this and could see an issue. The responsible developer will investigate this here as soon as possible.