Text Formatting ⇒ Itemize: bullet and text with the same color

[Molibdeno]

I'm trying to create a command to assign to an item and its text the same color

Code: Select all

\newcommand{\onecolor}[1] { \item[\color{#1}] \textcolor{#1}}

Where #1 is the chosen color
The result is text is colored, but the bullet is not displayed:



Can you help me?

Complete code:

Code: Select all

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[italian]{babel}
\usepackage[
  a4paper,
  margin=15mm,
  bindingoffset=2mm,
  heightrounded,
]{geometry}

\usepackage{amsmath}
\usepackage{microtype}
\usepackage{xcolor}
\usepackage{varwidth}
\usepackage{enumitem}
\usepackage{hyperref}
\usepackage{enumitem}

\newcommand{\onecolor}[1] { \item[\color{#1}] \textcolor{#1}}

\definecolor{lightgray}{HTML}{EFEFEF}

\begin{document}


\begingroup\setlength{\fboxsep}{6pt}
\colorbox{white}{%
  \begin{varwidth}[t]{\textwidth}
  TRIGONOMETRIA
  \begin{itemize}

   \onecolor{pink}{$\cot 2\alpha = \cfrac{2 \cot^{2} \alpha - 1}{2 \cot \alpha}$}	

  \end{itemize}
  \end{varwidth}%
}\endgroup

\end{document}

[Stefan Kottwitz]

Welcome to the forum!

You provided a very good code example. So it's very easy to test.
This is a way to change the bullet color, while other bullets stay the same:

Code: Select all

\newcommand{\onecolor}[1]{\item[\textcolor{#1}{\labelitemi}]\textcolor{#1}}

Stefan