What do the symbols, next to methods, in the OmniBrowser system browser mean?

>    The green plus seems to appear when you extend a class within YOUR
>    project.
>    For example, if in the Object class you add a method category *myproject
>    and put Object>>myMethod in it, it will get a green plus...
>    That's all I've figured out...
>    Rob
>    On Thu, Sep 18, 2008 at 3:26 PM, Andy Burnett
>    <[1][hidden email]> wrote:
>
>      I have only just started to use the OB based browser and I can't find
>      much in the way of documentation.  Looking through the methods, and
>      their hierarchy it seems as though the following applies:
>
>        * Nothing: new method in this chain, i.e. the method could exist in
>          other classes but not in this particular chain of inheritance.
>        * Upward orange triangle: method is inherited and overridden in this
>          class
>        * Downward orange triangle: method is overridden in a subclass
>        * Two orange triangles (up and down): overrides and is overridden in a
>          subclass
>        * Green up arrow: calls the same method in its super class
>        * Blue triangle: Self should not implement or subClassResponsibility
>        * Green plus: don't know, can't work this one out
>        * Red flag: has a halt message in the code
>        * Spanner: shows that the code needs to be returned to, i.e. under
>          construction
>
>      So, is my understanding correct?  What does the green plus symbol mean,
>      and... is there anyway to get the browser to display all the methods an
>      object responds too, i.e. its fully inherited list?
>
>      Cheers
>      AB
>
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> I have only just started to use the OB based browser and I can't find
> much in the way of documentation.  Looking through the methods, and
> their hierarchy it seems as though the following applies:
>
>     * Nothing: new method in this chain, i.e. the method could exist in
>       other classes but not in this particular chain of inheritance.
>
>     * Upward orange triangle: method is inherited and overridden in this
>       class
>
>     * Downward orange triangle: method is overridden in a subclass
>
>     * Two orange triangles (up and down): overrides and is overridden in
>       a subclass
>
>     * Green up arrow: calls the same method in its super class
>
>     * Blue triangle: Self should not implement or subClassResponsibility
>
>     * Green plus: don't know, can't work this one out
>
>     * Red flag: has a halt message in the code
>
>     * Spanner: shows that the code needs to be returned to, i.e. under
>       construction
>
> So, is my understanding correct?  What does the green plus symbol mean,
> and... is there anyway to get the browser to display all the methods an
> object responds too, i.e. its fully inherited list?