diff --git a/nvim/ultisnips/tex.snippets b/nvim/ultisnips/tex.snippets
index d69501d..e421453 100644
--- a/nvim/ultisnips/tex.snippets
+++ b/nvim/ultisnips/tex.snippets
@@ -385,7 +385,7 @@ endsnippet
 
 priority 100
 context "math()"
-snippet '(?<!\\)(sin|cos|arccot|cot|csc|ln|log|exp|star|perp|arcsin|arccos|arctan|arccot|arccsc|arcsec)' "Functions" rwA
+snippet '(?<!\\)(sin|cos|tan|arccot|cot|csc|ln|log|exp|star|perp|arcsin|arccos|arctan|arccot|arccsc|arcsec)' "Functions" rwA
 \\`!p snip.rv = match.group(1)`
 endsnippet
 
diff --git a/scripts/virtcable b/scripts/virtcable
new file mode 100755
index 0000000..0cb15d5
--- /dev/null
+++ b/scripts/virtcable
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+pactl load-module module-null-sink sink_name=vspeaker sink_properties=device.description=virtual_speaker
+pactl load-module module-remap-source master=vspeaker.monitor source_name=vmic source_properties=device.description=virtual_mic
diff --git a/tex/beamerthemedispboard.sty b/tex/beamerthemedispboard.sty
new file mode 100644
index 0000000..451ae2d
--- /dev/null
+++ b/tex/beamerthemedispboard.sty
@@ -0,0 +1,8 @@
+
+\mode<presentation>
+
+\setbeamerfont{btitle}{size=\large, series=\bf}
+
+\setbeamertemplate{itemize item}[circle]
+\setbeamertemplate{navigation symbols}{}
+
diff --git a/tex/booknotes.cls b/tex/booknotes.cls
index 1660dad..7922ed4 100644
--- a/tex/booknotes.cls
+++ b/tex/booknotes.cls
@@ -299,13 +299,13 @@
     }
 }
 
-\newcommand{\exercise}[1]{%
-    \def\@exercise{#1}%
-    \subsection*{Exercise #1}
+\newcommand{\exercise}[2][]{%
+    \def\@exercise{#2}%
+    \subsection*{Exercise #2. #1}
 }
 
-\newcommand{\subexercise}[1]{%
-    \subsubsection*{Exercise \@exercise.#1}
+\newcommand{\subexercise}[2][]{%
+    \subsubsection*{Exercise \@exercise.#2. #1}
 }
 
 \newcommand{\sect}[1]{
diff --git a/tex/handout.cls b/tex/handout.cls
index d85db16..18c46bc 100644
--- a/tex/handout.cls
+++ b/tex/handout.cls
@@ -302,15 +302,16 @@
     }
 }
 
-\newcommand{\exercise}[1]{%
-    \def\@exercise{#1}%
-    \subsection*{Exercise #1}
+\newcommand{\exercise}[2][]{%
+    \def\@exercise{#2}%
+    \subsection*{Exercise #2. #1}
 }
 
-\newcommand{\subexercise}[1]{%
-    \subsubsection*{Exercise \@exercise.#1}
+\newcommand{\subexercise}[2][]{%
+    \subsubsection*{Exercise \@exercise.#2. #1}
 }
 
+
 \newcommand{\sect}[1]{
     \def\@section{#1}
     \section{#1}
diff --git a/tex/notes.cls b/tex/notes.cls
index 6910ec8..5235aa6 100644
--- a/tex/notes.cls
+++ b/tex/notes.cls
@@ -298,13 +298,13 @@
     }
 }
 
-\newcommand{\exercise}[1]{%
-    \def\@exercise{#1}%
-    \subsection*{Exercise #1}
+\newcommand{\exercise}[2][]{%
+    \def\@exercise{#2}%
+    \subsection*{Exercise #2. #1}
 }
 
-\newcommand{\subexercise}[1]{%
-    \subsubsection*{Exercise \@exercise.#1}
+\newcommand{\subexercise}[2][]{%
+    \subsubsection*{Exercise \@exercise.#2. #1}
 }
 
 \newcommand{\sect}[1]{
diff --git a/themectl/schemes/passionfruit.yaml b/themectl/schemes/passionfruit.yaml
index d9a6d74..2e82a36 100644
--- a/themectl/schemes/passionfruit.yaml
+++ b/themectl/schemes/passionfruit.yaml
@@ -1,5 +1,4 @@
 scheme: "Passionfruit"
-author: "EvilMuffinHa"
 base00: "282828" # ----
 base01: "3c3836" # ---
 base02: "504945" # --
diff --git a/themectl/templates/beamercolortheme.mustache b/themectl/templates/beamercolortheme.mustache
index 81af077..5f7109e 100644
--- a/themectl/templates/beamercolortheme.mustache
+++ b/themectl/templates/beamercolortheme.mustache
@@ -5,6 +5,23 @@
 \definecolor{col}{HTML}{ {{base0D-hex}} }
 \definecolor{text}{HTML}{ {{base05-hex}} }
 
+\definecolor{color00}{HTML}{ {{base00-hex}} }
+\definecolor{color01}{HTML}{ {{base01-hex}} }
+\definecolor{color02}{HTML}{ {{base02-hex}} }
+\definecolor{color03}{HTML}{ {{base03-hex}} }
+\definecolor{color04}{HTML}{ {{base04-hex}} }
+\definecolor{color05}{HTML}{ {{base05-hex}} }
+\definecolor{color06}{HTML}{ {{base06-hex}} }
+\definecolor{color07}{HTML}{ {{base07-hex}} }
+\definecolor{color08}{HTML}{ {{base08-hex}} }
+\definecolor{color09}{HTML}{ {{base09-hex}} }
+\definecolor{color0A}{HTML}{ {{base0A-hex}} }
+\definecolor{color0B}{HTML}{ {{base0B-hex}} }
+\definecolor{color0C}{HTML}{ {{base0C-hex}} }
+\definecolor{color0D}{HTML}{ {{base0D-hex}} }
+\definecolor{color0E}{HTML}{ {{base0E-hex}} }
+\definecolor{color0F}{HTML}{ {{base0F-hex}} }
+
 \setbeamercolor{background canvas}{bg=base}
 \setbeamercolor{title}{fg=col}
 \setbeamercolor{frametitle}{fg=col}