diff --git a/packages/Color.sty b/packages/Color.sty
index c410e39..6f72372 100644
--- a/packages/Color.sty
+++ b/packages/Color.sty
@@ -160,7 +160,7 @@
 	\colorlet{codeKeywordColor}{PrimeLightBlue}
 	\colorlet{codeOperatorColor}{PrimeLightPink}
 	\colorlet{codeCommentColor}{PrimeLightMint}
-	\colorlet{codeNumberColor}{textColor}
+	\colorlet{codeNumberColor}{textColor}%{PrimeLightLime}
 	\colorlet{codeStringColor}{PrimeLightLime}
 } {
 	% Page and text colors.
@@ -200,7 +200,7 @@
 	\colorlet{codeKeywordColor}{PrimeBlue}
 	\colorlet{codeOperatorColor}{PrimePink}
 	\colorlet{codeCommentColor}{PrimeMint}
-	\colorlet{codeNumberColor}{textColor}
+	\colorlet{codeNumberColor}{textColor}%{PrimeLime}
 	\colorlet{codeStringColor}{PrimeLime}
 }
 
diff --git a/packages/CrossRef.sty b/packages/CrossRef.sty
index c1ceec7..9d13f20 100644
--- a/packages/CrossRef.sty
+++ b/packages/CrossRef.sty
@@ -64,8 +64,8 @@
 	\@@_heading:nnnnn {subparagraph} {#1} {#2} {#3} {#4}
 }
 
-\NewDocumentCommand{\Appendices}{}{
-	\@@_heading:nnnnn {part} {\c_true_bool} {\c_false_bool} {Appendices} {
+\NewDocumentCommand{\Appendices}{t^}{
+	\@@_heading:nnnnn {part} {\c_true_bool} {#1} {Appendices} {
 		\c_@@_appendices_label_str
 	}
 }
diff --git a/packages/Floats.sty b/packages/Floats.sty
index 7811f70..65ef98a 100644
--- a/packages/Floats.sty
+++ b/packages/Floats.sty
@@ -360,4 +360,27 @@
 			\\
 		\end{tblr}
 	\end{BigFloat}
-\group_end: }
\ No newline at end of file
+\group_end: }
+
+\NewDocumentEnvironment{CodeFloat}{
+	% #1: Label.
+	>{\TrimSpaces}m
+	% #2: Caption.
+	+m
+	% #3: Number of indentations.
+	m
+	% #4: Body text.
+	+b
+}{
+	\begin{figure}
+		\begin{MyCaption}{fig:#1}{#2}
+			\Centering
+			\begin{tblrCode}{
+				colspec		= {*{#3}{l}},
+				hline{1,Z}	= {0.6pt},
+			}
+				#4
+			\end{tblrCode}
+		\end{MyCaption}
+	\end{figure}
+}{}
\ No newline at end of file
diff --git a/packages/Fonts.sty b/packages/Fonts.sty
index dce7ed8..ec36f68 100644
--- a/packages/Fonts.sty
+++ b/packages/Fonts.sty
@@ -23,8 +23,8 @@
 
 	luaotfload.add_fallback(
 		"Roboto", {
-			"NotoSans:mode=harf;",
-			"NotoSansSymbols:mode=harf;",
+			"NotoSans-Medium:mode=harf;",
+			"NotoSansSymbols-SemiBold:mode=harf;",
 			"NotoSansSymbols2:mode=harf;",
 			"NotoEmoji:mode=harf;",
 		}
@@ -33,7 +33,7 @@
 	luaotfload.add_fallback(
 		"RobotoMono", {
 			"NotoMono:mode=harf;",
-			"NotoSansSymbols:mode=harf;",
+			"NotoSansSymbols-SemiBold:mode=harf;",
 			"NotoSansSymbols2:mode=harf;",
 			"NotoEmoji:mode=harf;",
 		}
@@ -41,10 +41,10 @@
 
 	luaotfload.add_fallback(
 		"RobotoSlab", {
-			"NotoSerif:mode=harf;",
-			"NotoSansSymbols:mode=harf;",
+			"NotoSerif-SemiBold:mode=harf;",
+			"NotoSansSymbols-SemiBold:mode=harf;",
 			"NotoSansSymbols2:mode=harf;",
-			"NotoEmoji:mode=harf;",
+			"NotoEmoji-SemiBold:mode=harf;",
 		}
 	)
 }
@@ -56,6 +56,8 @@
 	BoldFont		= *-SemiBold,
 	ItalicFont		= *-LightItalic,
 	BoldItalicFont	= *-SemiBoldItalic,
+	SlantFont		= RobotoSlab-SemiBold,
+	BoldSlantFont	= RobotoSlab-Black,
 	RawFeature		= {fallback=RobotoSerif},
 ]
 
diff --git a/packages/Layout.sty b/packages/Layout.sty
index 4ef91a9..d091c7e 100644
--- a/packages/Layout.sty
+++ b/packages/Layout.sty
@@ -108,6 +108,8 @@
 	}
 }{}
 
+\RenewDocumentEnvironment{Center}{}{\group_begin:\Centering}{\par\group_end:}
+
 
 \ExplSyntaxOff
 \AtBeginDocument{
diff --git a/packages/Tables.sty b/packages/Tables.sty
index 48127e9..9683537 100644
--- a/packages/Tables.sty
+++ b/packages/Tables.sty
@@ -30,6 +30,13 @@
 	hline{2}	= {0.4pt},
 }
 
+\NewTblrEnviron{tblrCode}
+\SetTblrInner[tblrCode]{
+	rows		= {font=\ttfamily\small},
+	hlines		= {0pt},
+	colsep		= {0pt},
+}
+
 \NewTblrTableCommand{\midtitle}[2][pageColor]{
 	\SetCell[c=#2]{
 		c, m,