Inherency means that all the sub-objects will take on the same properties as the master object. In this case as you go down the flow chart, each level overrides the level before it. There is a hierarchy of levels. See the different levels below.
It is best practice to start from the top and work your way down from global to specific (level 1-level 5). In this way you can make changes in design mode that effect more than one item so if you want all the items font color to change, you would go into design mode and change it from one of the top levels.
For example, text can be inherited. To make the text uniform, go to Design mode and click on the text tab. Then, set the parameters (font family, size, and color).