It indeed seems that the thickness of the frame doesn't respond to any of the options in Frame
. As a workaround, you could do this (although I would recommend the second approach below, instead!):
SetOptions[FrameBox, BoxFrame -> 3];
Framed["AA", FrameStyle -> Red]
However, the SetOptions
will affect all frames drawn in your notebook (even ones that have been drawn before).
A more customizable approach would be to use the lower level FrameBox
directly. This is shown here - using the ability of BoxFrame
to specify thicknesses of all sides individually:
FrameBox["AA", FrameStyle -> Red,
BoxFrame -> {{1, 4}, {1, 1}}] // DisplayForm

Edit: I neglected to add the comment by Mike Honeychurch, according to which it's also possible to get the above output with this line:
Framed["AA", BoxFrame -> {{1, 4}, {1, 1}}, FrameStyle -> Red]
However, the BoxFrame
option appears in red because it's not an officially documented option (and therefore this last line may stop working in future versions).
But: This Framed["AA", "BoxFrame" -> {{1, 4}, {1, 1}}, FrameStyle -> Red]
does not make "BoxFrame"
red neither in the Front End nor in Workbench.
Framed
,FrameStyle
andThickness
together is given. $\endgroup$