Improve message.js

Added:
- Types "notice" and "warning".
- Support for all but the "waiting" message type to stop a timer.

Changed:
- Improved colors of message types.
- Improved handling of PostCSS errors in styles.js.

build/styles.js

@@ -48,10 +48,13 @@ export async function compileStyles() {
                         sourcesContent: true
                     }
                 }).then((result) => {
-                    result.warnings().forEach((warn) => {
-                        message(`Error prefixing ${name}.css`, 'error');
-                        message(warn.toString());
-                    });
+                    const warnings = result.warnings();
+                    if (warnings.length) {
+                        message(`Error processing ${name}.css`, 'warning');
+                        warnings.forEach((warn) => {
+                            message(warn.toString());
+                        });
+                    }
 
                     saveStylesheet(result, outfile, name, timeLabel);
                 });

build/utils/message.js

@@ -1,24 +1,40 @@
+/**
+ * @file Provides a decorator for console messages.
+ */
+
 import kleur from 'kleur';
 
+/**
+ * Outputs a message to the console.
+ *
+ * @param {string} text      - The message to output.
+ * @param {string} [type]    - The type of message.
+ * @param {string} [timerID] - The console time label to output.
+ */
 export default function message(text, type, timerID) {
     switch (type) {
         case 'success':
-            console.log(kleur.bgGreen().black(`✅ ${text}`));
+            console.log('✅ ', kleur.bgGreen().black(text));
+            break;
 
-            if (timerID !== undefined) {
-                console.timeEnd(timerID);
-            }
+        case 'notice':
+            console.log('ℹ️  ', kleur.bgBlue().black(text));
             break;
 
         case 'error':
-            console.log(kleur.red().underline(`❌ ${text}`));
+            console.log('❌ ', kleur.bgRed().black(text));
+            break;
+
+        case 'warning':
+            console.log('⚠️  ', kleur.bgYellow().black(text));
             break;
 
         case 'waiting':
-            console.log(kleur.blue().italic(`⏱ ${text}`));
+            console.log('⏱ ', kleur.blue().italic(text));
 
-            if (timerID !== undefined) {
+            if (timerID != null) {
                 console.timeLog(timerID);
+                timerID = null;
             }
             break;
 
@@ -27,5 +43,9 @@ export default function message(text, type, timerID) {
             break;
     }
 
+    if (timerID != null) {
+        console.timeEnd(timerID);
+    }
+
     console.log('');
 };