How to fill a symbol with a colour?

Question

LaTeX symbols like \diamond, \circ and \square when compiled are in the form of symbols that are transparent. How can I fill black color into these shapes? For example, \circ shaded black is \bullet. Is there any command similar for \diamond and \square?

Please read : https://tex.meta.stackexchange.com/questions/1436/welcome-to-tex-sx — flav, Dec 18 '17 at 16:13
Welcome to TeX.SE. It would be helpful if you composed a fully compilable minimal working example (MWE) including \documentclass and the appropriate packages that sets up the problem. While solving problems can be fun, setting them up is not. Then, those trying to help can simply cut and paste your MWE and get started on solving the problem. Please also include a sketch how the output should look like. — samcarter_is_at_topanswers.xyz, Dec 18 '17 at 16:47
There is a similar question on this link: https://tex.stackexchange.com/questions/196782/filled-diamond-product-sign. Is it a duplicate your question? — Sebastiano, Dec 18 '17 at 18:23
The package MnSymbol provides the symbols \filleddiamond and \filledmedsquare. Many other packages have similar symbols. Consult the comprehensive LaTeX symbols list. — Sandy G, Dec 19 '17 at 04:08
Filled equivalent symbols are available. Once opened, this should be closed as a duplicate of How to look up a symbol or identify a math symbol or character? — Werner, Dec 19 '17 at 04:10

CarLaTeX · Answer 1 · 2017-12-21T06:26:59.377

amssymb has them, otherwise, for example, you could use fdsymbol:

\documentclass{article}
\usepackage{amsmath,amssymb}
\usepackage{fdsymbol}
\begin{document}
\noindent With \texttt{amsmath}:
\[
\blacklozenge \quad \blacksquare
\]
With \texttt{fdsymbol}:
\[
\medblackdiamond \quad \medblacksquare \quad
\smallblackdiamond \quad \smallblacksquare \quad
\]
\end{document}

Edit: Since \nabla is affected by fdsymbol, you could use stix, instead:

\documentclass{article}
\usepackage{amsmath}
\usepackage{stix}
\usepackage{array}
\setlength\extrarowheight{4pt}

\begin{document}
    \begin{tabular}{>{\ttfamily\textbackslash}l>{$}l<{$}}
        \multicolumn{2}{l}{With \texttt{stix} package:}\\
        mdblkdiamond & \mdblkdiamond \\
        mdblksquare & \mdblksquare \\
        mdlgblkdiamond & \mdlgblkdiamond \\
        mdlgblksquare \textnormal{or its alias} \textbackslash\texttt{blackquare} & \mdlgblksquare \quad \blacksquare\\
        nabla \textnormal{is correct}& \nabla
    \end{tabular}
\end{document}

There is a problem with the package fdymbol. In fdsymbol \nabla doesnot show the gradient operator instead it displays a big black circlw — Leo Lukose, Dec 21 '17 at 03:52
@LeoLukose You could use stix, please look at the edit of my answer. — CarLaTeX, Dec 21 '17 at 06:27

score 1 · Answer 2 · answered Dec 18 '17 at 17:21

An option for a simple staring point (the purpose of the symbols is not clear (e.g. math/text/graphics symbol?):

\documentclass{article}
\usepackage{tikz}
\begin{document}
  \tikz\shadedraw (0, 0) rectangle (1, 1);
  \tikz[rotate=45]\shadedraw (0, 0) rectangle ({1/sqrt(2)}, {1/sqrt(2)});
  \tikz[rotate=45]\shadedraw[shading angle=45]
    (0, 0) rectangle ({1/sqrt(2)}, {1/sqrt(2)});
\end{document}

score 0 · Answer 3 · answered Dec 19 '17 at 10:11

Run with xelatex or lualatex

\documentclass{article}
\usepackage{amsmath}
\usepackage{unicode-math}
\setmathfont{XITSMath}
\begin{document}
$\mdwhtcircle\mdblkcircle$
$\mdlgwhtdiamond\mdlgblkdiamond$
$\mdlgwhtsquare\mdlgblksquare$
\end{document}

How to fill a symbol with a colour?

3 Answers3

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