Version: (using KDE KDE 3.5.7) Installed from: SuSE RPMs Switch to this policy -- click to focus, open two windows, not maximized, make them overlap, click on [maximize] in the one in the background. It is still not active and it is still in the background. Such behaviour is not consistent -- with all settings set to "click to focus" feel (I mean I set every option to bring window active and to foreground on LMB) the result is something you wouldn't expect.
Confirmed with KDE 4.5.2
No idea whether this is a bug (thus marking wish), but it /has/ to be done by the decorations, since a) they intercept and eat the event on the button b) they're the only ones to know whether this button should cause an activation or not (eg. rather to certainly NOT for minimize/close - probably not for shading, no idea about the menu... you get the point)
KDE 3 is no longer supported. If it's still relevant with the latest Plasma 5 version, please reopen