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Useful notes for some of my answers:

CTAN lion drawing by Duane Bibby.

How do you accept an answer?](http://meta.tex.stackexchange.com/q/1852/3954)

minimal working example](http://www.minimalbeispiel.de/mini-en.html)

The demo option for graphicx simply replaces actual figures with black rectangles; do not use that option in your actual document.


Jun
24
awarded  Nice Answer
Jun
24
comment Draw custom frame around text
@MarcoDaniel I added to my answer a possibility using mdframed (some improvements still can be done, though). I hope you don't mind.
Jun
24
revised Draw custom frame around text
new code with mdframed, new image
Jun
23
revised Appendix after each chapter
improved the code
Jun
23
comment Insert a background picture in beamercolorbox?
@ThomasF.Sturm Great! I'll be checking updates on the mirrors. Thank you very much for letting me know.
Jun
23
comment Appendix after each chapter
@giannis please see my updated answer. Is it something like that what you have in mind?
Jun
23
revised Appendix after each chapter
new code, new image
Jun
23
comment Appendix after each chapter
@giannis In the document body and also in the ToC?
Jun
23
comment Appendix after each chapter
@giannis In the document or in the ToC or both? Let's say your appenix 2.A has the title "Some title". How should this title be displayed in the ToC (2.A "Some title")? How should it appear in the document ("Some title" 2.A)?
Jun
23
answered Appendix after each chapter
Jun
23
comment Draw custom frame around text
@MarcoDaniel why delete your answer? If you can incorporate the to[out=..., in=...] part to your solution, I think it would provide another valid approach.
Jun
23
comment Theorem with separate tikz environments for header and body
@RobertTernes regarding your question about how title is set for theorem-like frames, \pgfkeysalso{title={\setbox\z@=\hbox{#1~\csname the#2\endcsname\ }\hangindent\wd\z@\hangafter=1 \mbox{#1~\csname the#2\endcsname\ }(#3)}}} first saves the label and number in a box and then use the width of this box for the hanging indentation of the title; this, of course, can be modified according to your needs.
Jun
23
comment Draw custom frame around text
@user81566 I've made some updated to my answer.
Jun
23
revised Draw custom frame around text
Used \newtcolorbox
Jun
23
comment Theorem with separate tikz environments for header and body
@RobertTernes New update, this time with the code you requested in your first comment.
Jun
23
revised Theorem with separate tikz environments for header and body
new code requested in a comment, new image
Jun
23
answered TikZ intersection command not returning desired result
Jun
23
awarded  Good Answer
Jun
23
revised Draw custom frame around text
improved the code, re-uploaded image
Jun
23
revised Draw custom frame around text
improved code, reuploaded image