Yes, they aren't in a toolbar, they are just <element>'s beside the <MToolbar> you just modified.
Here's how it should look like: (in the 923 definition)
code:
<element layoutpos=right padding=rect(0,3,0,3) layout=borderlayout()>
<element layoutpos=left layout=filllayout()>
<Button layoutpos=left cmdid=40317 id=atom(colorizedropdownbtn) AccRole=57 Class="TransparentButton" Layout=flowlayout(0,2,0,2) Active=MouseandKeyboard|NoSyncFocus Padding=rect(5,4,5,4)>
<element class="ToolbarIcon" ID=Atom(ai210)/>
</Button>
</element>
<element layoutpos=right layout=filllayout() margin=rect(4,0,0,0)>
<Button class="TransparentDropdownButton" layout=borderlayout() layoutpos=right margin=rect(0,0,0,0) cmdid=20002 id=atom(showmenubtn) AccRole=57 active=MouseAndKeyboard|NoSyncFocus>
<element layoutpos=client layout=flowlayout(0,3,1,2) contentalign=middlecenter>
<element class="ToolbarIcon" Padding=rect(3,0,0,0) ID=Atom(ai211)/>
</element>
See the bold part, that is the second "toolbar", with those two buttons.
On Spunky: You're probably right, I just guessed.