How do I get rid of Horizon in SketchUp?

How do I remove the background from a picture in sketch?

Double click into the image. In the editor bar on the right there are two types of selection tools. A rectangle selector and magic wand. Use the magic wand to select the white and delete it.

How do you remove shading in SketchUp?

Go to Window > Shadows to open the Shadow Settings panel. (If needed, click on the icon in the upper right to expand the panel for more options.) Turn shadows off by using the shadows toggle in the upper left (or by going to View > Shadows). Check the Use sun for shading box to turn on the SketchUp sun.