Merge pull request #1899 from simon-leech/opacity-slider-fix

Opacity Slider Fix

lib/ui/layers/panels/style.mjs

@@ -3,7 +3,7 @@
 
 The style panel module exports the styleDrawer method for the `mapp.ui.layers.panels{}` library object.
 
-@requires /ui/elements/style
+@requires /ui/elements/layerStyle
 @requires /ui/elements/drawer
 
 @module /ui/layers/panels/style
@@ -141,11 +141,14 @@ A default order for the elements that make up the style panel will be assigned a
 
 A drawer element will be created with the style panel element as content.
 
+A default array will be assigned to the layer.style object to order the elements being added to the view in the [elements.layerStyle panel method]{@link module:/ui/elements/layerStyle~panel}.
+
 @param {layer} layer A decorated mapp layer with a style object.
 
 @property {layer-style} layer.style The layer style configuration.
 @property {Boolean} style.hidden Do not create style drawer for layer.view.
 @property {string} style.classList String of additional classes to add to the drawer element.
+@property {array} [style.elements=['labels','label','hovers','hover','themes','theme', 'icon_scaling','opacitySlider']] Array of default elements and their order for the style panel.
 
 @returns {HTMLElement} The style drawer element for the layer.view.
 */
@@ -161,6 +164,7 @@ export default function stylePanel(layer) {
     'themes',
     'theme',
     'icon_scaling',
+    'opacitySlider',
   ];
 
   // Request style.panel element as content for drawer.