Improve script, make BS4 CSS

generate.php

@@ -1,4 +1,6 @@
 <?php
+$use_variables = false;
+
 $classes = ["alert", "badge", "btn", "bg", "list-group-item"];
 
 $colors = [
@@ -20,7 +22,7 @@ $colors = [
 "deep-orange" => "#ff5722",
 "brown" => "#795548",
 "grey" => "#9e9e9e",
-"blue-grey" => "#607d8b",
+"blue-grey" => "#607d8b"
 ];
 
 $texts = [
@@ -45,20 +47,56 @@ $texts = [
 "blue-grey" => "white"
 ];
 
-echo ":root {\n";
+
-foreach ($colors as $k => $v) {
+/* License header */
+$year = date('Y');
+echo <<<END
+/* Material-Color.css
+ * Copyright (c) $year Netsyms Technologies
+ * MIT License
+ * https://source.netsyms.com/Netsyms/Material-Color
+ */
+
+END;
+
+/* Make CSS variables */
+if ($use_variables) {
+	echo ":root {\n";
+	foreach ($colors as $k => $v) {
 		if (strpos($k, "text-") !== FALSE) {
 			continue;
 		}
 		echo "\t--material-color-$k: $v;\n";
+	}
+	echo "}\n\n";
 }
 
-echo "}\n\n";
+/* The fun bit */
-
 foreach ($classes as $c) {
 	foreach ($colors as $k => $v) {
 		$textcolor = $texts[$k];
-		echo ".$c-$k {\n\tbackground-color: var(--material-color-$k);\n\tcolor: $textcolor;\n}\n";
+		// Save a few bytes
+		if ($textcolor == "white") {
+			$textcolor = "#fff";
+		} else if ($textcolor == "black") {
+			$textcolor = "#000";
+		}
+
+		// Class and background color
+		echo ".$c-$k {\n\tbackground-color: ";
+		if ($use_variables) {
+			echo "var(--material-color-$k)";
+		} else {
+			echo $v;
+		}
+		echo ";\n";
+
+		// Text color
+		if ($c != "bg") {
+			echo "\tcolor: $textcolor;\n";
+		}
+
+		echo "}\n";
 	}
 }
 ?>