(SOLVED) Alpha is black on texture (QUESTION)

[Mortimer]

I'm trying to make a 2d-ish kart, but the alpha doesn't seem to work in-game.

[tempAnon093]

In Blender, there should be an option for selecting the SuperTuxKart shader of each material. I can't check right now, but I think it's at the bottom in the Materials tab.
The Shader subheadings on this page which have Transparency should help: https://supertuxkart.net/Materials

[Mortimer]

I looked at another person's 2D kart (Toon Marcel), and they put all the transparent materials into the materials.xml file:

{l Code}: {l Select All Code}

<material name="main.png" shader="alphatest"/>

Now the alpha works in-game!

[tempAnon093]

Nice work! I think it's also good to know about the settings that I mentioned, which automatically generate that .xml file when you export a track or kart.