Avoid default value in property view

src/style_manager/model/PropertyFactory.js

@@ -176,7 +176,7 @@ export default class PropertyFactory {
       ['box-shadow-v', {}, 'text-shadow-h'],
       ['box-shadow-blur', { default: '5px' }, 'text-shadow-blur'],
       ['box-shadow-spread', {}, 'text-shadow-h'],
-      ['transition-duration', { default: '2', units: this.unitsTime }, 'border-radius-c'],
+      ['transition-duration', { default: '2s', units: this.unitsTime }, 'border-radius-c'],
       ['perspective', {}, 'border-radius-c'],
       ['transform-rotate-x', { functionName: 'rotateX', units: this.unitsAngle, default: '0', type: typeNumber }],
       ['transform-rotate-y', { functionName: 'rotateY' }, 'transform-rotate-x'],

src/style_manager/view/PropertyView.js

@@ -65,10 +65,6 @@ export default Backbone.View.extend({
     this.__destroyFn = this.destroy ? this.destroy.bind(this) : () => {};
     model.view = this;
 
-    if (!model.get('value')) {
-      model.set('value', model.getDefaultValue());
-    }
-
     if (em) {
       this.listenTo(em, `update:component:style:${this.property}`, this.targetUpdated);
       //this.listenTo(em, `styleable:change:${this.property}`, this.targetUpdated);