DEPRECATED - How to tint labels in Defold

tinted_label.fp

varying mediump vec2 var_texcoord0;
varying lowp vec4 var_face_color;
varying lowp vec4 var_outline_color;
varying lowp vec4 var_shadow_color;

uniform lowp vec4 texture_size_recip;
uniform lowp sampler2D texture;
uniform lowp vec4 tint;

void main()
{
    // Outline
    lowp vec2 t = texture2D(texture, var_texcoord0.xy).xy;
    gl_FragColor = vec4(var_face_color.xyz, 1.0) * t.x * var_face_color.w + vec4(var_outline_color.xyz * t.y * var_outline_color.w, t.y * var_outline_color.w) * (1.0 - t.x);

    // Pre-multiply alpha since all runtime textures already are
    lowp vec4 tint_pm = vec4(tint.xyz * tint.w, tint.w);
    gl_FragColor = gl_FragColor * tint_pm;
}

tinted_label.material

name: "tinted_label"
tags: "tile"
vertex_program: "/builtins/fonts/font.vp"
fragment_program: "/tinted_label/tinted_label.fp"
vertex_constants {
  name: "view_proj"
  type: CONSTANT_TYPE_VIEWPROJ
  value {
    x: 0.0
    y: 0.0
    z: 0.0
    w: 0.0
  }
}
fragment_constants {
  name: "tint"
  type: CONSTANT_TYPE_USER
  value {
    x: 1.0
    y: 1.0
    z: 1.0
    w: 1.0
  }
}

tinted_label.script

function init(self)
	go.set("#label", "tint", vmath.vector4(1.0, 0, 0, 1.0))
end