This function can be used to get the blend colour of the background element. You give the background element ID (which you get when you create a background element using layer_background_create() or when you use the function layer_background_get_id()), and the function will return real value that represents the colour assigned.



Argument Description
background_element_id The unique ID value of the background element to get the information from


Colour Value (Real)


var lay_id = layer_get_id("Background_sky");
var back_id = layer_background_get_id(lay_id);
if layer_background_get_blend(back_id) == c_white
    layer_background_blend(back_id, make_colour_rgb(random(255), random(255), 255));

The above code will get the layer ID for the layer named "Background_sky" and then use that to get the ID of the background element on that layer. This ID is then used to check the element blend colour and if it is equivalent to the constant c_white, then the layer blend is set to a random colour.