2 for 1! My sprite (png) changes colour on import, and my grid lines are rendered wierdly!

The screenshots should explain it well enough, i created a grey and beige sprite in GIMP, imported into unity and it is brown/orange in inspector and in game, however if i double click it in the heirarchy it shows as fine, except blurry. maybe something in the import settings? Secondly, my project is grid based, so the tile sprites have a border, it looks fine when zoomed in but when zoomed out some of the lines are not rendered or rendered twice? please any advice would be appreciated.