how to know image opened as svg

[rich2005]

Quote:Also I do not understand the purpose of new layer.

That gives you more options. Stroke the path on the transparent layer and you can add an effect under the drawing, say, a paper effect 
..or at some later date add the image over some other image.

Not able to stroke the path ?

I do not know why. Something in your procedure.

   

It goes like this:
(1) Make sure you are on the correct layer
(2) Choose a suitable brush. All will work but some better than others. Try the Grunge 01 brush
(3) Use the Paintbrush tool. The pencil tool works but gives a "hard" line.
(4) Set a brush size to suit the drawing.
(5) Edit -> Stroke Path and enable stroke with a paint tool. Paintbrush is the default tool. OK to stroke the path.