Styles allow for repeated use of properties on a given type of object. There is a QuickStyle button on the top, right of each object property page. When an object has been assigned a style, that style will be highlighted in the style list, shown on the Style properties for the object. If an object was given a style, but then modified from that style, its style name will have an asterisk (*) following the style name.
When you begin creating objects having just run the program, the default styles are being used, called “Normal.” These have been tested to be reasonable for all-around conditions, but naturally properties exist for a myriad of reasons.
If you click on the ‘Normal’ style it will reset the object(s) to that style. Keep in mind that all properties will be reset.