gistfile1.js

// Selects all text layers that have the same color as the reference layer
#import 'inventory.js'

// init
(function() {
  var pageCount = 0,
    color = null,
    fill = null,
    i = 0,
    lastFoundOnPage = -1,
    layer,
    layerCount = 0,
    layers,
    page,
    pages,
    referenceColor = null,
    referenceLayer = null,
    selectedLayerCount = 0,
    selectedLayers = [],
    shapeLayerCount = 0;

  // We need a reference layer

  if (selection.count() === 1) {

    // Remember the reference color
    referenceLayer = selection[0];
    referenceColor = referenceLayer.style().fills().objectAtIndex(0).color();

    // Loop through pages
    pages = doc.pages().objectEnumerator();

    while (page = pages.nextObject()) {
      i++;
      pageCount++;

      // Loop through all children of the page
      layers = page.children().objectEnumerator();

      while (layer = layers.nextObject()) {
        layerCount++;

        // Check if the layer is a shape group
        if (layer.isKindOfClass(MSShapeGroup)) {
          shapeLayerCount++;
          try {
            fill = layer.style().fills().objectAtIndex(0);
            color = fill.color();
            if (fill != null) {
              if (color.hexValue() === referenceColor.hexValue()) {
                selectedLayerCount++;
                layer.setIsSelected(true);
              }
            }
          } catch (error) {

          }
        }
      }
    }

    // Show how many layers have been selected
    doc.showMessage(selectedLayerCount + " shape layers selected within " +
      shapeLayerCount + " exisiting text layers within " +
      layerCount + " layers on " +
      pageCount + " pages.");
  } else {
    doc.showMessage("Please select a single reference text layer.");
  }
}());