Why would transparency not work in LibGdx on Android 2.3.5?

I'm running into trouble with LibGdx developing an 3D Android app. I metioned it briefly in my answer to my own question, but I have been unable to figure out why I cannot get transparency from .png images. The textures are transparent, I've checked in my OpenGL3+ framework on windows and they show transparent in the correct parts. My (simple placeholder) fragment shader code ends with: ``` vec4 finalColor = ambient + diffuse; finalColor.a = colorMap.a; gl_FragColor = finalColor; ``` I've tried `finalColor.a = 0.1;` which doesn't work. I've added this to my code but to no avail: ``` Gdx.gl20.glEnable(GL20.GL_DEPTH_TEST); Gdx.gl20.glBlendFunc(GL20.GL_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA); Gdx.gl20.glEnable(GL20.GL_BLEND); ``` I've even checked and changed: ``` AndroidApplicationConfiguration cfg = new AndroidApplicationConfiguration(); cfg.r = cfg.g = cfg.b = cfg.a = 8; ``` Which I though was the number of bits per channel. Any help at all on this would be appreciated, I just hope I've not overlooked anything. It's not a gigantic issue, and I could more or less complete my project without transparency, but would really like to know why I cant get it to work.