[Tar000un]

The parts about the concerned code :

UI_Texture:ClearAnchors();
UI_Label:ClearAnchors();
UI_BG:ClearAnchors();
UI:ClearAnchors();
 
UI:SetAnchor( TOPLEFT, GuiRoot, TOPLEFT, defaults.x, defaults.y );
UI_BG:SetAnchor(TOPLEFT, UI, TOPLEFT, 0, 0);
UI_Texture:SetAnchor(TOPLEFT, UI_BG, TOPLEFT, 0, 0);
UI_Label:SetAnchor(BOTTOM, UI_BG, BOTTOM, 0, 0);

The XML:

<Controls>
	<Backdrop name="$(parent)_BGcompassTiny" 
			inherits="ZO_CenterlessBackdrop" edgeColor="000000" 
			centerColor="000000" alpha="0">
		<AnchorFill />
	</Backdrop>
	<Texture name="$(parent)_TextureCompassTiny" />
	<Label name="$(parent)_LabelCompassTiny" 
		verticalAlignment="BOTTOM" horizontalAlignment="CENTER" 
		text="Label" alpha="1" 
	/>
</Controls>