I was redirected here from academia.se. I saw these red, green and blue rectangles in some research papers and wondered:
1. What their purpose is?
2. Does including them in the paper signify higher expertise or anything of that kind?
3. How are they included in a paper?
I saw these red, green and blue rectangles in some research papers
- What is their purpose?
Their purpose is to signal to readers that the enclosed fields are not just some sort of cross-reference but the fields are dynamic, in the sense that clicking on them will make the pdf browser jump to the corresponding external or internal link.
- Does including them in the paper signify higher expertise or anything of that kind?
I'm not sure how one unambiguously signals "higher expertise". Producing the color rectangles does signal, I believe, that the author has left the Stone Age behind. (Aside: A friend of mine, who is a mathematician, once told me, "Most mathematicians are Neanderthals." [!] I suppose that this friend would concede that writers who can create hyperlinked cross-references and citation call-outs may safely be classified as Homo sapiens sapiens...) Assuming the document was created with LaTeX, it also signals an at least passing acquaintance with (a) knowing how to load the hyperref package and (b) not hard-coding cross-references in the document but, instead, using commands such as
\cite to create the cross-references and citation call-outs.
- How are they included in a paper?
The colored boxes are generated by LaTeX if (a) the document loads the
hyperref package and (b) the author uses commands such as
\label to create "anchors" and commands such as
\eqref (for cross-references to equation numbers),
\cref. To create hyperlinked citation call-outs -- such as the numbers 28, 480, and 492 in your screenshot -- it's necessary to know how use a suitably modern citation management package (
biblatex come to mind) and an external program (bibtex or biber) to create the formatted bibliography.
On a side note, an interaction designer would promptly say that this method of using colours looks ugly
Youa re not the only one who holds these beliefs! Indeed, see the posting better default colors for hyperref links for currently-ongoing efforts to come up with better color schemes.