A follow-up for bug 99891: after the latter was fixed, do the same with help packages installer.
Citing Adolfo Jayme from bug 99891 comment #0:
> The MSI installer still uses Tahoma 8 (Windows 2000/XP) as its UI font.
> Since Vista, the platform’s UI font is Segoe UI 9. The installer should
> match that.
> (At this point we should not be concerned about XP: this font is not
> installed by default in that platform, but any user who at some point
> installed a Windows Live application should have it... But the main point
> is, XP has reached end of life!)
Roman Kuznetsov committed a patch related to this issue.
It has been pushed to "master":
tdf#126944 - Update help installer fonts to Segoe UI 9 pt
It will be available in 6.4.0.
The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.