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Preferences
Button Options
Display Options
ButtonMinHeight
• ButtonMinHeight is an option for buttons that determines the minimum total height in units of font size that should be allowed for the button.
• The default setting ButtonMinHeight 
1 forces a button to have a total height which at least accommodates all the characters in the current font.
• ButtonMinHeight 0 reduces the total height of a button as much as possible, allowing buttons containing characters such as "x" and "X" to be different heights.
• See also: ButtonMargins, ButtonExpandable.
