Starts a good tracing interface

src/prover/tracing.rs

@@ -1,6 +1,9 @@
 use std::{default, fmt::Display};
 
 use log::info;
+use owo_colors::{OwoColorize, colors::css::Gray};
+
+use crate::ast::Variable;
 
 #[derive(Clone, Copy)]
 pub enum ProofType
@@ -61,3 +64,18 @@ impl Tracer for SimpleTracer
         todo!()
     }
 }
+
+pub fn colored_var(var: &Variable) -> String
+{
+    let mut idx = None;
+    for (i, char) in var.chars().enumerate()
+    {
+        if char == '['
+        {
+            idx = Some(i);
+        }
+    }
+    let (var, unique) = var.split_at(idx.unwrap_or(var.len()));
+    let unique = unique.fg::<Gray>();
+    format!("{}{}", var, unique)
+}