Script that iterates through the layers and applies a Color Overlay style to each one.

Photoshop version:

26.0.0

Error: 

Error 8800: General Photoshop error occurred. This functionality may not be available in this version of Photoshop.

- The command “Set” is not currently available.

Line: 60

->      executeAction(charIDToTypeID("setd"), desc, DialogModes.NO);

What am I doing wrong when I execute the action? (sorry the comments are in Spanish)

#target photoshop

function applyGradientGrayOverlay() {
    var doc = app.activeDocument;
    
    // Ajusta estos valores según lo que prefieras
    var startGray = 1; // Valor inicial de gris (0 = negro, 255 = blanco)
    var increment = 1; // Incremento de gris por cada capa
    
    // Iterar sobre cada capa
    for (var i = 0; i < doc.layers.length; i++) {
        var layer = doc.layers[i];
        
        if (layer.typename == "ArtLayer" && !layer.isBackgroundLayer) {
            // Calcular el valor de gris para esta iteración
            var grayValue = Math.min(255, startGray + (i * increment));
            
            // Crear el color gris
            var color = new SolidColor();
            color.rgb.red = grayValue;
            color.rgb.green = grayValue;
            color.rgb.blue = grayValue;
            
            // Aplicar el Color Overlay a la capa
            addColorOverlay(layer, color);
        }
    }
}

function addColorOverlay(layer, color) {
    // Seleccionar la capa
    app.activeDocument.activeLayer = layer;

    // Crear el descriptor para el estilo de capa de Color Overlay
    var desc = new ActionDescriptor();
    var ref = new ActionReference();
    ref.putEnumerated(charIDToTypeID("Lefx"), charIDToTypeID("Lyr "), charIDToTypeID("Ordn"));
    desc.putReference(charIDToTypeID("null"), ref);

    // Configuración de la superposición de color (Color Overlay)
    var fxDesc = new ActionDescriptor();
    var overlayDesc = new ActionDescriptor();
    
    overlayDesc.putBoolean(charIDToTypeID("enab"), true); // Habilitar
    overlayDesc.putEnumerated(charIDToTypeID("Md  "), charIDToTypeID("Blnd"), charIDToTypeID("Nrml")); // Modo de fusión: Normal
    overlayDesc.putUnitDouble(charIDToTypeID("Opct"), charIDToTypeID("#Prc"), 100); // Opacidad al 100%
    
    // Configurar el color
    var colorDesc = new ActionDescriptor();
    colorDesc.putDouble(charIDToTypeID("Rd  "), color.rgb.red);
    colorDesc.putDouble(charIDToTypeID("Grn "), color.rgb.green);
    colorDesc.putDouble(charIDToTypeID("Bl  "), color.rgb.blue);
    overlayDesc.putObject(charIDToTypeID("Clr "), charIDToTypeID("RGBC"), colorDesc);

    // Agregar la configuración de Color Overlay al descriptor del efecto
    fxDesc.putObject(charIDToTypeID("SoFi"), charIDToTypeID("SoFi"), overlayDesc);
    desc.putObject(charIDToTypeID("T   "), charIDToTypeID("Lefx"), fxDesc);

    // Aplicar el descriptor a la capa activa
    executeAction(charIDToTypeID("setd"), desc, DialogModes.NO);
}

// Ejecutar la función
applyGradientGrayOverlay();