TextureModifier.OnPostprocessTexture C# (CSharp) Method

    void OnPostprocessTexture(Texture2D texture)
    {
        if (!assetPath.EndsWith ("PVR.png")) {
            return;
        }

        var pixels = texture.GetPixels ();

        for (var i = 0; i < pixels.Length; i++) {
            if (pixels [i].a == 0.0f) {
                pixels [i] = new Color (0.5f, 0.5f, 0.5f, 0.0f);
            }
        }

        texture.SetPixels (pixels);
        EditorUtility.CompressTexture (texture, TextureFormat.PVRTC_RGBA4, TextureCompressionQuality.Best);
    }