Custom color template, custom commands, custom cv footer, added skills, make targets rely on new custom style and commands, formatting and cleanup

_templates/references/references.tex

@@ -5,16 +5,8 @@
 % available at http://www.latex-project.org/lppl/.
 \documentclass[11pt,a4paper,sans]{moderncv}        % possible options include font size ('10pt', '11pt' and '12pt'), paper size ('a4paper', 'letterpaper', 'a5paper', 'legalpaper', 'executivepaper' and 'landscape') and font family ('sans' and 'roman')
 
-% This is a hack to fix a weird build error in all styles but the contemporary one
-% https://tex.stackexchange.com/a/621308
-\makeatletter % this will go in the .sty file
-\AddToHook{begindocument/before}{%
-    \@ifpackageloaded{tikz}{\usetikzlibrary{tikzmark}}{}%
-}
-\makeatother
-
 % moderncv themes
-\moderncvcolor{green}                           % color options 'black', 'blue' (default), 'burgundy', 'green', 'grey', 'orange', 'purple' and 'red'; for contemporary style use 'cerulean'
+\moderncvcolor{_custom/moderncvcustomcolorgreen}
 \moderncvstyle[]{classic}                     % style options are 'casual' (default), 'classic', 'banking', 'oldstyle', 'fancy' and 'contemporary'
 % the 'contemporary' style optionally takes the `qr` (default) or `noqr` options
 %\renewcommand{\familydefault}{\sfdefault}         % to set the default font; use '\sfdefault' for the default sans serif font, '\rmdefault' for the default roman one, or any tex font name