Put color into debug output

schala-repl/src/repl/response.rs

@@ -1,5 +1,6 @@
 use colored::*;
 use std::fmt;
+use std::fmt::Write;
 
 use super::ReplOptions;
 use crate::language::{ DebugAsk, ComputationResponse};
@@ -12,10 +13,15 @@ pub struct ReplResponse {
 
 impl fmt::Display for ReplResponse {
   fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    let mut buf = String::new();
     if let Some(ref label) = self.label {
-      write!(f, "({})", label).unwrap();
+      write!(buf, "({})", label).unwrap();
     }
-    write!(f, "=> {}", self.text)
+    write!(buf, "=> {}", self.text).unwrap();
+    write!(f, "{}", match self.color {
+      Some(c) => buf.color(c),
+      None => buf.normal()
+    })
   }
 }