Add bar coloration option

src/main.rs

@@ -20,6 +20,8 @@ struct Arguments {
     nitrogen_dioxide: bool,
     #[clap(short, long = "o3", help = "Display ozone O3")]
     ozone: bool,
+    #[clap(short, long, help = "Use color formatting tags for lemonbar and polybar")]
+    bar: bool,
 }
 
 #[derive(From, Debug)]
@@ -113,6 +115,15 @@ fn main() -> Result<(), Error> {
     } else {
         format!("{aqi} AQI")
     };
+    if arguments.bar {
+        print!("%{{F#{}}}", match aqi {
+            150.. => "b48ead",
+            100.. => "bf616a",
+            50.. => "d08770", 
+            20.. => "ebcb8b",
+            0.. => "a3be8c",
+        });
+    }
     print!("{}", descriptor);
     println!("{} {}",
         match aqi {
@@ -132,5 +143,8 @@ fn main() -> Result<(), Error> {
             0.. => display.green(), // Excellent 0-19
         }.bold()
     );
+    if arguments.bar {
+        print!("%{{F-}}");
+    }
     return Ok(());
 }