<a name="outlineColour"><h3 style="padding-top: 40px; margin-top: 40px;"></h3></a>
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**outlineColour("colour")** Sets the colour of a button outline, or a rotary slider**s tracker outline. In the case of rslider's this is the line that is drawn around the rslider's tracker. If you don't wish to display the tracker outline set the colour to something with an alpha value of 0. See above for details on valid colours. 

<!--UPDATE WIDGET_IN_CSOUND
    SIdent sprintf "outlineColour(%d, %d, %d) ", rnd(255), rnd(255), rnd(255)
    SIdentifier strcat SIdentifier, SIdent  
--->