Hi, I have scribed an end panel for a kitchen unit and cut with a plunge saw on a track. Panel meets the wall nicely, but as good as it is, it is not 100% perfect, so there is still a visible gap down the whole length - the panel is flush against with another wall so it is quite noticeable. How should I go about filling this tiny gap (probably talking 0.5mm to 1mm in places)? Or what other advice is there? Thanks all! *I do have a small pot of touch up paint, so fill and paint? I think I would need to fill along the entire butted up piece as just filling the gap on its own probably would stay in?