Drag and drop different styles

[johnnyblasta]

Is your feature request related to a problem? Please describe.
When using drag and drop control and adding multiple files it's difficult to see which feature belongs to which layer since they all get the same style.

Describe the solution you'd like
When having more than one layer in draganddrop the different layers should be assigned a different colour for each layer.
It would be nice to be able to configure which colours should be used.

Describe alternatives you've considered
To assign different styles by oneself by clicking on the three dots menu.

[tonnyandersson]

Wouldn't it be cool if the administrator didn't have to configure those colors? Either by automatically assigning each added layer a randomly generated color (desktop GIS style), or by using the colors available in the draw control palette or something? Personally, I would prefer the former.

I think it would make sense to implement both an automatically assigned style and the possibility to change the style manually from the layer menu.