[Tex/LaTex] Edit position of nodes in tikz mindmap

mindmapstikz-pgftikz-trees

I'm trying to make a mindmap with tikz but I want to add some fading (smooth transition between clear blue and dark blue) between the colour of the root node and his childrens. 

\begin{tikzpicture}[mindmap, grow cyclic, text width=3cm, align=flush center, 

every node/.style=concept, concept color=blue!20,
                    level 1/.style={level distance=8cm,sibling angle=180},
                    level 2/.style={level distance=5cm,sibling angle=60}]
\node [concept color=blue!50]{Clasificacion de las calderas}
child{node{De acuerdo a}
child {node {Combustible empleado}}
child {node {Tipo de transferencia}}
child {node {Circulacion}}
child {node {Contenido de agua}}
child {node {Presion de horno}}
child {node {Configuracion}}
};
\end{tikzpicture}

This is my result:

enter image description here

Best Answer

Like this?

\documentclass[border=5]{standalone}
\usepackage{tikz}
\usetikzlibrary{mindmap}
\begin{document}
  \begin{tikzpicture}[mindmap, grow cyclic, text width=3cm, align=flush center,
every node/.style=concept, concept color=blue!90,
                    level 1/.style={level distance=9cm,sibling angle=180,every child/.append style={concept color=blue!35}},
                    level 2/.style={level distance=6cm,sibling angle=60,,every child/.append style={concept color=blue!10}}]
\node {Clasificacion de las calderas}
child{node{De acuerdo a}
child {node {Combustible empleado}}
child {node {Tipo de transferencia}}
child {node {Circulacion}}
child {node {Contenido de agua}}
child {node {Presion de horno}}
child {node {Configuracion}}
};
\end{tikzpicture}
\end{document}

enter image description here

Trick here was to add 

every child/.append style={concept color=blue!35}

to level 1 and level 2 styles.

Related Question