Format-Toolbar
The Format Toolbar buttons are available to format selected cells in the worksheet as well as annotations on your graph.
Sets the text label font
Sets the text label font size
Bold
Italic
Underline
Superscript
Subscript
Super/subscript
Greek letter (Default = TT Symbol Font)
Increase font size
Decrease font size
Align text horizontall left
Align text horizontall center
Align text horizontall right
Align text verticall top
Align text verticall center
Align text verticall bottom
Sets the text label font color