I'm trying to implement hide function in my application. What I want is to have this little arrow ">" when is hide and "V" when is visible. I know how to make it so its hides and shows but I need that little arrow to change whenever I click on it....
I'm using quickly and python to create my app. I tried set_icon_from_stock function but it returns error:
AttributeError: 'ToolButton' object has no attribute 'set_icon_from_stock'
Above example of arrow I talking about.
Thanks

