So I finally cleaned up my XML a bit - still without success.
As my ID_UISkin_Craft_Window code isn't that long right now I paste the complete section in hope for someone who has an idea how I can modify the textlabel marked in my screenshot:
Code:
<PanelFile ID="ID_UISkin_Craft_Window">
<Element ID="Craft_Window" X="5" Y="122" Width="807" Height="570">
<Element ID="CraftWindow_BaseBox" X="0" Y="18" Width="807" Height="557">
</Element>
<Element ID="Craft_RecipePage" X="383" Y="27" Width="440" Height="545">
<Element ID="Craft_Recipe_CooldownDuration" X="50" Y="59" Width="380" Height="18">
</Element>
<Element ID="Craft_Recipe_NameText" X="48" Y="7" Width="265" Height="40">
</Element>
<Element ID="Craft_Recipe_EarnedPointsText" X="50" Y="43" Width="380" Height="18">
</Element>
<Element ID="Craft_Recipe_Item" X="10" Y="10" Width="32" Height="32">
<Element ID="CraftRecipe_Panel" X="0" Y="97" Width="495" Height="504">
<Element ID="Craft_Recipe_Item" X="10" Y="10" Width="32" Height="32">
<Element ID="ItemDisplay_ShortIcon" X="0" Y="0" Width="32" Height="32">
<Element ID="ItemDisplay_Icon" X="0" Y="0" Width="32" Height="32">
<Element ID="ItemDisplay_SelectedOverlay" X="0" Y="0" Width="32" Height="32">
</Element>
<Element ID="ItemDisplay_RolloverOverlay" X="0" Y="0" Width="32" Height="32">
</Element>
<Element ID="ItemDisplay_CooldownOverlay" X="0" Y="0" Width="32" Height="32">
</Element>
<Element ID="ItemDisplay_IASlotOverlay" X="0" Y="0" Width="32" Height="32">
</Element>
<Element ID="ItemDisplay_OutOfRangeOverlay" X="20" Y="4" Width="12" Height="12">
</Element>
<Element ID="ItemDisplay_XPBarField" X="0" Y="28" Width="32" Height="4">
</Element>
<Element ID="ItemDisplay_PendingOverlay" X="0" Y="0" Width="32" Height="32">
</Element>
<Element ID="ItemDisplay_ElligibleOverlay_StateBlocker" X="0" Y="0" Width="32" Height="32">
<Element ID="ItemDisplay_ElligibleOverlay" X="0" Y="0" Width="32" Height="32">
</Element>
</Element>
<Element ID="ItemDisplay_LockedOverlay" X="0" Y="0" Width="32" Height="32"> </Element>
<Element ID="ItemDisplay_QuantityOverlay" X="0" Y="15" Width="32" Height="12"> </Element>
<Element ID="ItemDisplay_BrokenOverlay" X="0" Y="0" Width="32" Height="32"> </Element>
<Element ID="ItemDisplay_IANeedsIdentificationOverlay" X="0" Y="0" Width="32" Height="32"> </Element>
<Element ID="ItemDisplay_GhostedOverlay" X="0" Y="0" Width="32" Height="32"> </Element>
<Element ID="ItemDisplay_UnusableOverlay" X="0" Y="0" Width="32" Height="32"> </Element>
<Element ID="ItemDisplay_IANeedsReforgeOverlay" X="0" Y="0" Width="32" Height="32"> </Element>
</Element>
</Element>
</Element>
</Element>
</Element>
<Element ID="CraftRecipe_Panel" X="0" Y="97" Width="438" Height="378">
<Element ID="CraftRecipe_MasterPage" X="0" Y="249" Width="440" Height="122">
<Element ID="Craft_Recipe_CriticalField" X="24" Y="0" Width="440" Height="40">
<Element ID="Craft_Recipe_CriticalItem" X="0" Y="4" Width="332" Height="32">
<Element ID="ItemDisplay_ShortIcon" X="0" Y="0" Width="32" Height="32">
<Element ID="ItemDisplay_Icon" X="0" Y="0" Width="32" Height="32">
</Element>
</Element>
</Element>
</Element>
</Element>
</Element>
</Element>
<Element ID="Craft_NoProfessionField" X="0" Y="18" Width="800" Height="380">
<Element ID="Craft_NoProfession_Text_Label" X="48" Y="195" Width="399" Height="151"> </Element>
<Element ID="Base_Box_Silver_BottomMid" X="36" Y="594" Width="866" Height="36"> </Element>
<Element ID="Base_Box_Silver_BottomRight" X="902" Y="594" Width="36" Height="36"> </Element>
<Element ID="Base_Box_Silver_MidRight" X="902" Y="36" Width="36" Height="558"> </Element>
<Element ID="Base_Box_Silver_Background" X="36" Y="36" Width="918" Height="558"> </Element>
<Element ID="Base_Box_Silver_TopRight" X="902" Y="0" Width="36" Height="36"> </Element>
<Element ID="Base_Box_Silver_TopLeft" X="0" Y="0" Width="36" Height="36"> </Element>
<Element ID="Base_Box_Silver_TopMid" X="36" Y="0" Width="866" Height="36"> </Element>
<Element ID="Base_Box_Silver_MidLeft" X="0" Y="36" Width="36" Height="558"> </Element>
<Element ID="Base_Box_Silver_BottomLeft" X="0" Y="594" Width="36" Height="36"> </Element>
</Element>
<Element ID="Crafting_Base_Box_TitleBar" X="87" Y="-11" Width="251" Height="45">
</Element>
<Element ID="Craft_CloseButton" X="783" Y="22" Width="16" Height="16">
</Element>
<Element ID="Craft_ProfessionPanel" X="0" Y="21" Width="387" Height="557">
<Element ID="Craft_Prof1Tab" X="5" Y="4" Width="128" Height="29">
</Element>
<Element ID="Craft_Prof2Tab" X="130" Y="4" Width="128" Height="29">
</Element>
<Element ID="Craft_Prof3Tab" X="255" Y="4" Width="128" Height="29">
</Element>
<Element ID="Craft_Prof1Page" X="8" Y="5" Width="387" Height="550"> </Element>
<Element ID="Craft_Prof2Page" X="8" Y="5" Width="387" Height="550"> </Element>
<Element ID="Craft_Prof3Page" X="8" Y="5" Width="387" Height="550"> </Element>
</Element>
<Element ID="Craft_HideOnExecuteText" X="401" Y="500" Width="141" Height="20"> </Element>
<Element ID="Craft_HideOnExecuteButton" X="389" Y="504" Width="10" Height="10"> </Element>
</Element>
</PanelFile>