Can the green border of the window turn white?

Yes, just draw it yourself. . . Another problem is that you can only do the inside, not the facade, because the property will ruin the whole appearance. . . I had the same idea at first, and the answer was this: it doesn't make much sense to do it inside if you can, and the balcony window maker said that the paint he sprayed would come off easily after a long time. . . I hope I can help you: $