In TWW, how to highlight specific bag slot with custom texture? My DF addon broke

[Primo_nxs]

In Dragonflight I make a personal addon that place a custom texture over one or multiple bag slots that contains a specific equippable item. In The War Within no icon is visualized anymore inside my bags because the way how the bag slot are identified is changed... I think...

This was the piece of the code that worked in Dragonflight:

-- Function to highlight a specific bag slot
local function HighlightBagSlot(bag, slot, iconPath)
    local bagFrame = _G["ContainerFrame"..(bag + 1)]
    if bagFrame then
        local slotsPerBag = C_Container.GetContainerNumSlots(bag)
        local index = (slotsPerBag + 1) - slot
        local button = _G[bagFrame:GetName().."Item"..index]
        if button and C_Container.GetContainerItemLink(bag, slot) then
            button:SetHighlightTexture(iconPath or "Interface\\AddOns\\MyAddons\\MyImage\\Image.tga")
            local highlightTexture = button:GetHighlightTexture()
            if highlightTexture then
		highlightTexture:SetBlendMode("BLEND") -- Set the blend mode to "BLEND"
		highlightTexture:SetPoint("TOPLEFT", button, "TOPLEFT", -3, 3)
                highlightTexture:SetPoint("BOTTOMRIGHT", button, "BOTTOMRIGHT", 3, -3)
                highlightTexture:SetVertexColor(1, 1, 1, 1)  -- Ensure the texture is fully opaque
                button:LockHighlight()
            end
        end
    end
end

Maybe there is a simple way to do that? I know is possible, the Zygor Guide is able to do that but is a quite complex addon.

I tried everything, even AI. ...so.... help???

[SDPhantom]

You can't rely on the container name matching the bagID being opened as ContainerFrames are a pooled resource. There does appear to be a UI function that'll get you the ItemButton associated for a specific bag and slot.

See: ContainerFrameUtil_GetItemButtonAndContainer()