hmmm, there is few files in FrameXML folder :
but i think they are .xml files they can't control that thing, there is no other files related to talents. in all .mpq files.
TalenFrameTemplate.xml
Code:
<Ui xmlns="http://www.blizzard.com/wow/ui/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.blizzard.com/wow/ui/
..\..\FrameXML\UI.xsd">
<Texture name="TalentBranchTemplate" file="Interface\TalentFrame\UI-TalentBranches" virtual="true">
<Size>
<AbsDimension x="32" y="32"/>
</Size>
<Anchors>
<Anchor point="TOPLEFT"/>
</Anchors>
</Texture>
<Texture name="TalentArrowTemplate" file="Interface\TalentFrame\UI-TalentArrows" virtual="true">
<Size>
<AbsDimension x="32" y="32"/>
</Size>
<Anchors>
<Anchor point="TOPLEFT"/>
</Anchors>
</Texture>
<Button name="TalentButtonTemplate" inherits="ItemButtonTemplate" virtual="true">
<Anchors>
<Anchor point="TOPLEFT"/>
</Anchors>
<Layers>
<Layer level="BACKGROUND">
<Texture name="$parentSlot" file="Interface\Buttons\UI-EmptySlot-White">
<Size>
<AbsDimension x="64" y="64"/>
</Size>
<Anchors>
<Anchor point="CENTER">
<Offset>
<AbsDimension x="0" y="0"/>
</Offset>
</Anchor>
</Anchors>
</Texture>
</Layer>
<Layer level="OVERLAY">
<Texture name="$parentRankBorder" file="Interface\TalentFrame\TalentFrame-RankBorder">
<Size>
<AbsDimension x="32" y="32"/>
</Size>
<Anchors>
<Anchor point="CENTER" relativePoint="BOTTOMRIGHT">
<Offset>
<AbsDimension x="0" y="0"/>
</Offset>
</Anchor>
</Anchors>
</Texture>
<FontString name="$parentRank" inherits="GameFontNormalSmall">
<Anchors>
<Anchor point="CENTER" relativeTo="$parentRankBorder">
<Offset>
<AbsDimension x="0" y="0"/>
</Offset>
</Anchor>
</Anchors>
</FontString>
</Layer>
</Layers>
<Scripts>
<OnLeave>
GameTooltip:Hide();
</OnLeave>
</Scripts>
</Button>
</Ui>
Figured out where and what to change, can mark solved , profit :