Add section on 8-bit color

thebookofcolors

@@ -42,7 +42,7 @@ subtitle() {
 
 	printf "\e[4;37m"
 	printf "$1"
-	printf "\e[0m"
+	printf "\e[0m\n"
 }
 
 italic() {
@@ -189,7 +189,27 @@ section_8bit_colors() {
 	printf " for foreground colors, or "
 	italic "\\\e[48;5;n"
 	printf " for background colors.\n"
+	printf "The value chosen for "
+	italic "n"
+	printf " determines which color is selected. See the information in the following two subsections to see the range of colors available.\n"
+	newline
 
+	subtitle "Ranges of Available Colors"
+	printf "  0-  7: Standard colors (the same as \\\e[30m through \\\e[37m)\n"
+	printf "  8- 15: Bright colors (the same as \\\e[90m through \\\e[97m)\n"
+	printf " 16-231: A 6x6x6 cube of RGB colors\n"
+	printf "232-255: Grayscale from light to dark in 24 increments\n"
+	newline
+
+	subtitle "A Table of Available Colors"
+	for i in $(seq 0 255); do
+		if test "$(echo $i % 8 | bc)" = "0" -a "$i" != "0"; then
+			printf "\n"
+		fi
+
+		printf "\e[38;5;${i}m\\\e[38;5;%-3d\e[0m " "$i"
+	done
+	newline
 }
 
 section_rgb_colors() {