[fullmoon_sulfuras]

Thanks for the reply!

I've tried your suggestion and now I'm getting an `attempt to call method 'SetBackdropColor' (a nil value)` error when trying to create the frame. Where should the `OnLoadFunc` function be placed? Does it need to be somewhere special?

But regardless of that, my understanding is that by using an `OnLoad` method you can avoid having separate XML files for Classic and Retail/BCC, which is nice. Will this solve the problem of transparent backgrounds?

The frame already had a <Script> section:

<Scripts>
	<OnLoad>
		self:SetBackdropColor(1.0,1.0,1.0,1);
	</OnLoad>
	<OnMouseDown>
		if ( button == "LeftButton" ) then
			self:StartMoving();
		end
	</OnMouseDown>
	<OnMouseUp>
		self:StopMovingOrSizing();
	</OnMouseUp>
</Scripts>

So I've changed it to:

<Scripts>
	<OnLoad inherit="prepend">
		if BackdropTemplateMixin then -- if this is NOT a Classic type frame, add the backdrop mixin
			Mixin(self, BackdropTemplateMixin)
		end
		self:SetBackdropColor(1.0,1.0,1.0,1);
	</OnLoad>
	<OnMouseDown>
		if ( button == "LeftButton" ) then
			self:StartMoving();
		end
	</OnMouseDown>
	<OnMouseUp>
		self:StopMovingOrSizing();
	</OnMouseUp>
</Scripts>

That fixed the `attempt to call method 'SetBackdropColor' (a nil value)` error, but I'm still getting a transparent background.


Thanks!