Btukfyl

I'm trying to make a little style package to make some nice blocks with icons and so on. I'm using environ package + tikz. Actually the document compiles and shows me my boxes but with errors saying that some environments are not closed.

I created a "iconbox" environment with environ package that accepts some arguments (title, icon, colors...) and I want to use it to generalize some boxes: info box, danger box...

The problem begins when I want to create a new environment that uses the iconbox I've created.

If I want to use NewEnviron that calls another one, LaTeX crashes in recursion.

If I use the legacy newenvironment so LaTeX says that I didn't close the iconbox block.

And of course, I tried beginiconbox and endiconbox in start and end block but it doesn't work.

Here is a "copy/paste" that should give you the problem

documentclass{book}

usepackage[utf8]{inputenc}

usepackage[francais]{babel}

usepackage[T1]{fontenc}

usepackage{xcolor}

usepackage[tikz]{bclogo}

usepackage[framemethod=tikz]{mdframed}

usepackage{environ} % NewEnviron

usepackage{fontawesome} % font awesome icons

%Options: Sonny, Lenny, Glenn, Conny, Rejne, Bjarne, Bjornstrup

usepackage[Sonny]{fncychap}



usepackage{tikz}

usetikzlibrary{babel}

%usetikzlibrary{shadows}

usetikzlibrary{shadows.blur}



usepackage{color}

usepackage{pbsi} % for handwriting

%usepackage{gfsartemisia-euler} % default font

%usepackage[default]{raleway}

%usepackage{noto}

%usepackage{newpxtext,newpxmath}

usepackage{bera}

%usepackage{DejaVuSerif}



definecolor{m3dorange}{HTML}{ff9966}

definecolor{m3dred}{HTML}{c9453e}

definecolor{m3dgreen}{HTML}{4f9c45}

definecolor{m3dblue}{HTML}{2499d0}



% title, icon, color, title color

NewEnviron{iconbox}[4]{%

    begin{center}

        begin{tikzpicture}

        node [

            top color=#3!10,

            bottom color = white,

            inner sep=2em,

            rounded corners=1em,

            draw=#3!60,

            inner sep=1.2em,

            text width=textwidth*.7,

            drop shadow = {opacity=.4},

            shadow yshift = -4,

            shadow xshift = 4,

            font=paritshape

        ] (frame) at (0, 0)  {hspace{1.5em}textbf{bsifamily{centeringLargetextcolor{#4}{#1}}}vspace{.8em}parBODY};%

        node [

            shape=circle,

            top color=#4!90,

            bottom color=white!50,

            color=white,

            circular drop shadow={opacity = .7},

            font=Huge,

            inner sep=6pt] at (frame.north west) {centeringtextbf{#2}};

        end{tikzpicture}

    end{center}

}



newenvironment{danger}[1]

    {begin{iconbox}{#1}{faExclamation}{m3dorange}{red}}

    {end{iconbox}}

newenvironment{success}[1]

    {begin{iconbox}{#1}{faStickyNoteO}{m3dgreen}{m3dgreen}}

    {end{iconbox}}

newenvironment{info}[1]

    {begin{iconbox}{#1}{faBookmark}{m3dblue}{m3dblue}}

    {end{iconbox}}



begin{document}

begin{danger}{Warning}

You do it wrong.

end{danger}

end{document}