Take this example:
Plot[Callout[Sin[x], Sin[x], Above], {x, 0, Pi}]
Question: How can I change the length of the line connecting the $\sin(x)$ label with the plotted curve?
I believe this line is called the "leader" and it can be modified with the LeaderSize
option. But adding either LeaderSize -> 10
or LeaderSize -> {10}
to Callout
makes no difference.
Motivation: When the plot has a wide aspect ratio, the leaders tend to be too long. I assume this is because they are computed relative to the figure width.
Plot[Callout[Sin[x], Sin[x], Above], {x, 0, Pi}, AspectRatio -> 1/4]