Please describe the problem:
In the menu Edit - Preference in the tab page Fonts & Style, there is a setting called "Minimum size". When you click on the button "Detailed Font Settings...", there's again a setting "Minimum Size". Both settings seem to work completely idependently. Either they are both the same setting, and in that case they should always show the same value, either they are something different, but then the label should be changed so it's clear that these settings are not the same.

Steps to reproduce:
1. Go to Edit - Preference, tab page Fonts & Style
2. Modify Minimum Size, for example change it from 9 to 12
3. Click on "Detailed Font Settings..." 


Actual results:
Mimimum size shows another value than 12. When changing the Minimum size in Detailed Font Settings, the minimum size in the previous tab page is not changed either.

Expected results:
Both should show exactly the same value or the label should be different.

Does this happen every time?


Other information:
Problem exists in 2.18 and 2.19