Hi Jules, can you change the following constructor to not have a hard coded value for the backgroundColourId?
TextPropLabel (TextPropertyComponent& owner_,
const int maxChars_, const bool isMultiline_)
: Label (String::empty, String::empty),
owner (owner_),
maxChars (maxChars_),
isMultiline (isMultiline_)
{
setEditable (true, true, false);
setColour (backgroundColourId, Colours::white);
setColour (outlineColourId, findColour (ComboBox::outlineColourId));
}