Mesh is black for some reason

Questions
1 
-- Use this function to perform your initial setup
displayMode(STANDARD)

function setup()
    k = {}
    g = {}
    for x = 1, 20 do
        k[x] = mesh()
        k[x].texture = "Blocks:Stone"
        k[x].color = vec3(1, 2, 1)
        k[x].shader = shader("Project:Colorise")
        
        g[x] = k[x]:addRect(0, 0, 0, 0)
    end
    
    --[[m = mesh()
    m.texture = readImage("Blocks:Stone")
    m.shader = shader("Effects:Ripple")

    rIdx = m:addRect(0, 0, 0, 0)]]
    --m:setRectColor(i, 255,0,0)
end

-- This function gets called once every frame
function draw()
    -- This sets a dark background color
    background(40, 40, 50)

    -- This sets the line thickness
    --strokeWidth(5)
    
    for x = 1, 20 do
        k[x]:setRect(g[x], 20*x, 30, 25, 25)
        k[x]:draw()
    end

    -- Here we set up the rect texture and size
    --[[m:setRect(rIdx, WIDTH/2, HEIGHT/2, 180, 180)

    -- Configure out custom uniforms for the ripple shader
    m.shader.time = ElapsedTime
    m.shader.freq = 2
    
    -- Draw the mesh
    m:draw()]]
end

The only change I’ve made in the shader is the fragment:

//
// A basic fragment shader
//

//Default precision qualifier
precision highp float;

//This represents the current texture on the mesh
uniform lowp sampler2D texture;

//The interpolated vertex color for this fragment
varying lowp vec4 vColor;

uniform vec3 color;

//The interpolated texture coordinate for this fragment
varying highp vec2 vTexCoord;

void main()
{
    //Sample the texture at the interpolated coordinate
    lowp vec4 col = texture2D( texture, vTexCoord ) * vColor;

    //Set the output color to the texture color
    gl_FragColor = vec4(col.r * color.x, col.g * color.y, col.b * color.z, 1);
}
2

@TokOut Did you try removing color.x, color.y, and color.z to see if that works. If it does, then you can figure out what problem you have with color.