The top of my window frame is curved, probably as a fail in construction. Just noticed it when I was trying to install new blinds. You can see it in the picture below that it is uneven by the center of the frame.
Now when I try to install the blinds I need like another quarter inch for the edge to latch into the holder:
Is there any simple solution? I can think in adding spacers (which I just did temporarily, but looks quite ugly), or to do some sanding in the center to remove the extra material in the curved part and then repainting.
Edit: Forgot to add that the frame is vinyl.
Thanks a lot!