By default the Mod Bar has a default set of functions which are part of the enVisual installation. This can be changed to add more functionality or to tailor the bar for the users own environment.
The icons in the mod bar can also be changed to look larger or smaller by right clicking to obtain the menu that allows you to change the "view type" as in the following example:
By clicking the view type option again the view changes to make the icons smaller as in the following example:
Resetting the Mod Bar.
As seen by the above screen shots, the menu option also has an option to "Reset - Mod Bar". This places the default functions on the bar and removes any user specified icons.