diff --git a/thebookofcolors b/thebookofcolors
index 7352002..fe8be5f 100755
--- a/thebookofcolors
+++ b/thebookofcolors
@@ -296,6 +296,12 @@ section_bright_colors() {
 	printf "\e[97m\\\e[97m White\e[0m          \e[107m\\\e[107m White\e[0m\n"
 }
 
+section_dim_colors() {
+	title "Code 2; Dim Color"
+
+	printf "TODO\n"
+}
+
 section_italics() {
 	title "Code 3; Italics"
 
@@ -379,6 +385,18 @@ section_inverse() {
 	printf "\e[7;37m\\\e[7;37m Light grey\e[0m       \e[7;47m\\\e[7;47m Light grey\e[0m\n"
 }
 
+section_conceal() {
+	title "Code 8; Conceal, or Hide"
+
+	printf "TODO\n"
+}
+
+section_strikethrough() {
+	title "Code 9; Strikethrough"
+
+	printf "TODO\n"
+}
+
 section_using_escape_sequences_in_shell_prompt() {
 	title "Using Escape Sequences in Shell Prompts"
 
@@ -409,7 +427,7 @@ section_table_of_all_sgr_commands() {
 		if test "$i" -lt "100"; then printf " "; fi
 		printf " "
 	done
-	newline
+	newline 2
 
 	printf "Note that not all capabilities will necessarily be shown; codes 38 and 48, for example, require extra parameters in order to do anything (to select from the 8-bit or 24-bit color palette).\n"
 }
@@ -469,6 +487,9 @@ main() {
 	section_bright_colors
 	newline
 
+	section_dim_colors
+	newline
+
 	section_italics
 	newline
 
@@ -481,6 +502,12 @@ main() {
 	section_inverse
 	newline
 
+	section_conceal
+	newline
+
+	section_strikethrough
+	newline
+
 	section_using_escape_sequences_in_shell_prompt
 	newline