Why are the arrowheads placed as they are in the figure below? I.e. why are they not placed at the exact beginning and end of the path?
Code used:
documentclass[tikz,border=2pt]{standalone}
usetikzlibrary{decorations.markings,arrows.meta}
begin{document}
begin{tikzpicture}
draw[double distance=15, thick,
postaction={decorate, decoration={markings, mark=at position 0 with {arrow{Straight Barb[reversed,length=0pt 0.7]}}}},
postaction={decorate, decoration={markings, mark=at position 1 with {arrow{Straight Barb[length=2pt 0.7]}}}}
] (0,2) -- node {FOO}(5,2);
end{tikzpicture}
end{document}
For reference, how I want it to be:
