Yeah i got it finally!! thanks for your help. On the other hand could i ask another question ?

i tried but it didn't work. I hope you understood my issue. However, i can discribe again.

1) download the .svg file which i uploaded
2) select a SVG node
3) apply "sketch" effect from Path->Path Effect Editor
4) you will see that background color distribution changes

finally! :D no problem about spam prevention however, waiting someone to accept the new thread wastes a little bit time :). So you say if i duplicate the node it will put upon on the old one (not replace) ? Moreover, i'm considering to change background color while game is played. I understood your ...

Hi there. I'm dealing with my final project and i decided to use SVG file for my game's map. Moreover, i want to add sketch effect to every SVG node. However, when i apply a sketch effect to a node background color changes interestingly that i cannot understand. Even though, when i cancel "Fill...