Enable hiding route lines from image

Android 3.1.3

Problem:

Often the route lines on the images can obscure a lot of the features and details of the wall itself. This, combined with occasional bad photography and unintuitive image ordering can make it difficult to identify where routes are located, and which wall features they follow.

Suggestion:

Make it possible to quickly hide the and inside the route lines on an image, for example, by long press-and-hold on the image. Another option could be a discrete button on the top bar of on top of the image.