\documentclass[
  year = 2018,
  language = english,
  eventsCsv = ./data/holidays.csv,
  markDefaultsCsv = ./data/mark_defaults.csv,
  imageFolder = ./photos/,
  paperWidth = 11in - 15mm,
  paperHeight = 8.5in - 15mm,
  trimSpace = 15mm,
  topMargin = 15mm,
  sundayFirst,
]{wallcalendar}

\makeatletter

\colorlet{mooncolor}{darkgold}
\colorlet{sunday}{red}

% === Custom fonts =====================================================

\usepackage{fontspec}
\defaultfontfeatures{Ligatures={TeX}}

\setmainfont{TeX Gyre Pagella}

\newfontfamily\dejaVuSans{DejaVu Sans}

\newfontfamily\josefinSans[Path = {./fonts/}]{JosefinSans-Regular.ttf}

% === Renew formatting hooks ===========================================

\renewcommand*\dayLetterTextFmt[1]{#1}

\renewcommand\photoAndNotesFmt{%
  \renewcommand*\monthFmt{\josefinSans\LARGE}%
  \renewcommand*\yearFmt{\josefinSans\LARGE}%
  \renewcommand*\dayLetterColor{}%
  \renewcommand*\dayLetterFmt{\small}%
  \renewcommand*\dayLetterTextFmt[1]{\josefinSans\tiny\textls*{\MakeUppercase{##1}}}%
  \renewcommand*\dayTextFmt{\josefinSans\small}%
  \renewcommand*\quoteFmt{\centering}%
  \renewcommand*\headingFmt{\centering}%
  \renewcommand*\calendarFmt{\centering}%
  \renewcommand*\eventsFmt{\setlength{\parindent}{0pt}\raggedright\josefinSans\fontsize{6}{8}\selectfont}%
  \setlength{\@t@calendar@minimumHeight}{\calPaperHeight - 30mm}%
  \setlength{\@t@calendar@hmargin}{20pt}%
  \setlength{\@t@calendar@verticalSpacing}{30mm}%
}

% === September ========================================================

\SetPhoto[bleed=3mm, file={green-mountains-crop-us-letter}]{September}

\SetQuote[xOffset=0pt, yOffset=-15mm]{September}{%
\raggedleft\setlength{\parskip}{10pt}\fontsize{15}{22}\selectfont\color{black!85}%
The Road goes ever on and on\\
Out from the door where it began.\\
Now far ahead the Road has gone,\\
Let others follow it who can!

{\large \textit{Bilbo Baggins}}%
}

\SetCalendar[]{September}

\SetEvents{September}{%
% All this will be in tikzpicture environment, after drawing the calendar.
%
% This adds a semicolon to end the \calendar command so we can start adding nodes.
\semicolonEndTikzCalendar%
%
% Overlaying a photo with text on a specific date in this month
%
% photo node
\node (day-photo) [
  above right=3.2pt and 0.1pt of cal09-2018-09-18.north west,
  inner sep=0pt,
  anchor=north west,
] {%
  \includegraphics[width={\@t@calendar@dayXshift - 0.25pt}]{TomBombadil-crop}%
};%
%
% the photo is dark, add a white background for the day number
\node (top-whitecircle) [
  below right=0.3pt and 0.1pt of cal09-2018-09-18-daynumber.center,
  anchor=center,
  circle,
  minimum width=15pt,
  inner sep=0pt,
  fill=white,
  opacity=0.6,
] {};%
%
% the photo is dark, add a white background for the day's event text
\node (bottom-whitebox) [
  above left=0pt and 0pt of day-photo.south west,
  anchor=south west,
  minimum width={\@t@calendar@dayXshift - 0.25pt},
  minimum height=18pt,
  inner sep=0pt,
  fill=white,
  opacity=0.6,
] {};%
%
% repeat the day number (the photo has covered it)
\calDayNumberNode{cal09-2018-09-18}{-redo}{\dayTextFmt 18}%
%
% print the day's marks (moon phases in this case) next to the day number
\parseMonthMarksDayTextInlineUsing{./data/moonphases-2018.csv}%
%
% print the day's event text
\parseMonthInlineNotes%
}{}

\makeatother

\begin{document}

\MonthPage[layout=photo and notes, put photo=full page]{September}

\end{document}