tikzposter without maketitle

Question

I want to skip the \maketitle command in tikzposter, since I already have a title box in a separate file (which I include as suggested here).

However, omitting \maketitle results in some y-offset for my content (\block{...}) at about half of poster height. So I have some huge white space, I want to get rid of.

I also tried to use an empty title by setting \settitle{} in the preamble, and then using \maketitle[linewidth=0], but this still gives me an empty title box with a (thin) frame (default theme), which overlaps my actual background image title.

So how do I use tikzposter if I don't need the \maketitle command?

minimal working example:

\documentclass[]{tikzposter}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{lipsum}
\settitle{}     % empty title

\begin{document}

% background image with actual title
\node[above right,inner sep=0pt,outer sep=0pt] at (bottomleft) {\includegraphics[width=\paperwidth,height=\paperheight]{example-image}};

% insert empty title box
% \maketitle[linewidth=0]

% content
\block{Test}{\lipsum}

\end{document}

Answer 1

The tikzposter redefines \maketitle which includes (amongst others) setting \TP@blocktop, a length which seems to determine the vertical position of the first block.

\documentclass[]{tikzposter}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{lipsum}
\settitle{}     % empty title

\begin{document}

% background image with actual title
\node[above right,inner sep=0pt,outer sep=0pt] at (bottomleft) {\includegraphics[width=\paperwidth,height=\paperheight]{example-image}};

\makeatletter
    \setlength{\TP@blocktop}{.47\textheight}
\makeatother

% content
\block{Test}{\lipsum}

\block{Test}{\lipsum}

\end{document}