Text styles, General style and all master/slave dialogs category highlight is faint
Nightly d08e14c (4 Jan 2016) on Win 7 HP / MS 2.0.2 on Win 10.
1. Select Style menu > text.
2. Click on any category in the left column.
3. Edit one of the properties.
As soon as you move the cursor from the style name to one of the properties, the style name on the left loses its blue highlight. This also happens if you create a new style.
BTW, there appears to be no way to delete the new style once created.