Aligning the text with the 'boxes' in a histogram legend

[Itzhak Rasooly]

I am trying to make a two-way histogram. Unfortunately, the text and the 'box' in the legend are not exactly aligned. To see the issue, consider the example:

sysuse auto.dta
twoway (histogram mpg, discrete bfcolor(white) bcolor(black*.60)) ///        
       (histogram rep78, discrete color(green%20)), ///  
       legend(order(2 "MPG Variable" 1 "REP78 Variable")) xsc(titlegap(*5)) plotregion(margin(zero))

This produces the following histogram:




As can be seen, "MPG Variable" is not aligned with the green box: it is a bit too low. An analogous comment applies to "REP78 Variable". Is there an easy way to fix this?

Note: I tried posting this question earlier (see here) but couldn't see it listed in the forum. I'm reposting from a different browser.

[Itzhak Rasooly]

A small update: I ran this code on somebody else's laptop (with STATA 18) and the problem disappeared! So the problem is either caused by:
1) An issue with STATA 16 (my version)
2) An issue induced by the Latin Modern font (I think this is most likely).
Despite this, I believe that the problem should be fixable even if I stick with the Latin Modern font.