Today, there is a painful process to create and change an icon to the web blocks, entities and actions. The icons need to be created in the different sizes (16,24,32px), ensure they are pixel perfectly designed (like in 1999) and convert into a .ico file.
Would be good to have an easier way to do this.
By allowing the import of a vector format (svg) we ensure that the icon will scale and looks great on any size.