I added some small icons to my map and after that resized the page because some icons were out of the page. Then uploaded the new svg file, but white pixels show up in the warlight editor.

How can I neutralize these aggressive pixels?

http://warlight.net/SinglePlayer.aspx?PreviewMap=8844

Hm... I dont see the aggressive pixels in the view what I linked. It seems the pixels shows only in the map editor, however I didnt try the new version in live play.

If the pixels are invisible in the game than the problem is left.

These "white pixels" sounds for me like center-points.
Try to adjust the center-points of the territories new and see if the white points moved away.

OMG, really the white pixels are the center points. I believed that these moves with the territories but no.

I had the same problem before with my map. I'd already set close to 1500 of them and then decided to center the map differently. Oops. Good luck!

Fortunately I have only 200 and I had already finished :)

Fortunately, there exists an automated centerpoint generator. It's not perfect, but better than nothing.

http://wiki.warlight.net/index.php/Automating_the_map_creation_process#Centerpoints