\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[margin=18mm]{geometry}
\usepackage[reference-date=2026-07-18]{kanban-board}

\pagestyle{empty}

\begin{document}

\section*{Light and dark board modes}

% Light mode is the package default. It can nevertheless be stated explicitly
% when the contrast with a following dark board is important. The bg option
% tints the surface of one card with a touch of the given color.
\subsection*{Light mode}
\begin{kanban}[columns={Planned,Active,Complete},mode=light]
  \kanbantask[prio=high,author=Alice,deadline=01/01/2000]
    {Planned}{Confirm the requirements}
  \kanbantask[bg=yellow,author=Bob,due=07/18/2026]
    {Active}{Implement the package interface}
  \kanbantask[bg=kanbanTeal,completed,deadline=12/31/2099]
    {Complete}{Create the test files}
\end{kanban}

\bigskip

% Dark mode changes only the board surfaces and text. It does not change the
% page color or the surrounding document text. A tint is mixed into the dark
% card surface, so the same color names work in both modes.
\subsection*{Dark mode}
\begin{kanban}[columns={Planned,Active,Complete},mode=dark]
  \kanbantask[prio=medium,author=Carol,deadline=01/01/2000]
    {Planned}{Prepare the release notes}
  \kanbantask[bg=yellow,author=David,due=07/18/2026]
    {Active}{Review the documentation}
  \kanbantask[bg=kanbanTeal,completed,deadline=12/31/2099]
    {Complete}{Select the license}
\end{kanban}

\end{document}