change the look of autocompletion

engine/src/core/repl/mod.rs

@@ -3,6 +3,7 @@ pub mod repl;
 
 use std::{borrow::Borrow, collections::HashMap, sync::Arc};
 
+use colored::Colorize;
 use lazy_static::lazy_static;
 use log::{debug, info};
 use parking_lot::RwLock;
@@ -128,6 +129,8 @@ impl CommandList {
                 }
                 (_, _) => command.execute(args),
             }
+        } else {
+            eprintln!("Command: '{}' was not found", name.red().italic());
         }
     }
 }

engine/src/core/repl/repl.rs

@@ -37,7 +37,7 @@ impl Highlighter for MyHelper {
     }
 
     fn highlight_hint<'h>(&self, hint: &'h str) -> Cow<'h, str> {
-        Owned(hint.bold().to_string())
+        Owned(hint.italic().bright_black().to_string())
     }
 }
 
@@ -139,6 +139,7 @@ fn tokenize(command: &str) -> Vec<String> {
 
 fn evaluate_command(input: &str) {
     if input.trim().is_empty() {
+        println!("Empty command, skipping. type 'help' for a list of commands.");
         return;
     }