feat(training): add yellow output to weak wins

 - sometimes we get wins with low reward values, and they look terrible when viewing the output
  - add yellow log outputs for < 1.0 reward wins

Author: justindujardin

libraries/mathy_python/mathy/agents/a3c/util.py

@@ -62,7 +62,11 @@ def record(
 
     global_ep_reward = global_ep_reward * 0.99 + episode_reward * 0.01
 
-    fore = "green" if is_win else "red"
+    fore = "green"
+    if not is_win:
+        fore = "red"
+    elif episode_reward < 1.0:
+        fore = "yellow"
     heading = "{:<8} {:<3} {:<8} {:<10}".format(
         now, f"w{worker_idx}", f"ep: {episode}", f"steps: {num_steps}"
     )