如何减少 TikZposter 中 2 个块之间的 space?

How can I reduce the space between 2 blocks in TikZposter?

大家好我有这段代码,我想减少块之间的 space,水平和垂直,我还想优化块内的 space 减少空 space在侧面。

\documentclass[a2paper]{tikzposter}
    %\geometry{paperwidth=1080px,paperheight=1980px}
    \usepackage{multicol}
    \usetheme{Board}
    \usepackage{lipsum}
    
    \begin{document}
    
    \node[above right,opacity=1.2,inner sep=0pt,outer sep=0pt] at (bottomleft) {\includegraphics[width=\paperwidth,height=\paperheight]{example-image-duck}};
    
    \maketitle[titletotopverticalspace=-8cm] % See Section 4.1
    \colorlet{blockbodybgcolor}{black}
    \colorlet{blockbodyfgcolor}{white}
    \colorlet{blocktitlefgcolor}{red}
    \block{\textbf{Ultrastructural anylisis}}{}
    
    \begin{columns}
    \column{0.55} 
    \block{\large Scientific Relevance}{
    \small The overall \textcolor{red}{why is this outside?mmmmmmmmmmmmmmmmmm}}
    
    \column{0.45} \block{Ciao}{\lipsum[1]}
    \end{columns}
    
    \end{document}

tikzposter class 有一个 class 选项来调整列之间的 space:

\documentclass[a2paper,colspace=1pt]{tikzposter}
\usetheme{Board}
\usepackage{lipsum}

\begin{document}

\node[above right,opacity=1.2,inner sep=0pt,outer sep=0pt] at (bottomleft) {\includegraphics[width=\paperwidth,height=\paperheight]{example-image-duck}};

\maketitle[titletotopverticalspace=-8cm] % See Section 4.1
\colorlet{blockbodybgcolor}{black}
\colorlet{blockbodyfgcolor}{white}
\colorlet{blocktitlefgcolor}{red}
\block{\textbf{Ultrastructural anylisis}}{}

\begin{columns}
\column{0.55} 
\block{\large Scientific Relevance}{
\small The overall \textcolor{red}{why is this outside?mmmmmmmmmmmmmmmmmm}}

\column{0.45} \block{Ciao}{\lipsum[1]}
\end{columns}

\end{document}