Use this one.
Select it and the area around with box select.
should be exactly 25x41 at 90dpi
How to do the inset border:
Delete the existing inset border. Select the background, duplicate.
Path, Dynamic offset.
Fill: None, Stroke Paint: RGBA #ffffff1f
Zoom down to the top and grab the diamond, drag it down and fiddle it untill it looks in line
with the main color layers border.