I try to use a subviewport to provide customized Sticker, when items are inside the edge everything right.
but if anything is beyond the line ,all ruined.
As we know when UV scale is more than 1 and repeat is off, the outside will automatically filled with the edge color. unlike Blender, there aren't a option of "repeat/extend/clip/mirror".
now the only way I find is to use another subview, which contains a TextureRect and show a 1 pixie smaller subview.
This works, but i think the cost may too much.
may it could be easier by Shader.
