I attempted to evaluate the following
Plot[x^2, {x, 1, 2}, PlotStyle -> {RGBColor[a]}]
which, of course, failed. After the failure, putting my mouse over the graphics produced
RGBColor called with 1 argument; 3 or 4 arguments are expected.
As far as I'm concerned, Mathematica messages are in the syntax of Symbol::Tag : Message
, yet these don't follow that format. I can also add the message to the Messages window by clicking on the red [+] at the top-right of the graphics cell.
So what does Mathematica call these messages and how are they generated?
Symbol::Tag :Message
. $\endgroup$FrontEnd
and not theKernel
. But I'm not so fluent in the correct "nomenclature" that you may be looking for. $\endgroup$Symbol::Tag
messages are handled by the kernel - note that in the Preferences dialog they are referred to as "Kernel Messages" and are under the Evaluation tab, whereas "Formatting error indications" (i.e. the pink box) is under the Interface tab.RGBColor[a]
is completely legitimate code as far as the kernel is concerned, so there are no kernel messages. It's only when the front end attempts to display the graphic that the problem arises. $\endgroup$ToolTip
. $\endgroup$