How do I remove the shadow from the widget?

To remove the shadow first get into the edit mode and click on the pencil icon. Next click on the style tab and choose the shadow icon. Then, choose which edges and click on the edges button to enable (blue) them or disable (gray) them.

 Step 3: Click on the edges to disable them (orange). Disable the edges by clicking on the blue buttons so they appear gray.

Now the edge icons appear gray (orange).

Note: Click again to enable. Blue means they are enabled.

Congratulations you have removed the shadow from the widget.