Switch from :color to :test-color as per Mark's suggestion.

@@ -50,7 +50,7 @@ project in.
     :dev-dependencies [[clj-stacktrace "0.2.3-SNAPSHOT"]]
     :hooks [leiningen.hooks.clj-stacktrace-test]
     :repl-options [:caught clj-stacktrace.repl/pst+]
-    :clj-stacktrace {:color true}
+    :clj-stacktrace {:test-color true}
 
 The :hooks entry will enable clj-stacktrace to be used by clojure.test
 and other things that use the clojure.stacktrace library. The

@@ -2,16 +2,16 @@
   (:use [leiningen.compile :only [eval-in-project]]
         [robert.hooke :only [add-hook]]))
 
-(defn- hook-form [form color?]
-  (let [pst (if color?
+(defn- hook-form [form project]
+  (let [pst (if (:test-color (:clj-stacktrace project))
               'clj-stacktrace.repl/pst+
               'clj-stacktrace.repl/pst)]
     `(do (alter-var-root (resolve '~'clojure.stacktrace/print-cause-trace)
                          (constantly @(resolve '~pst)))
          ~form)))
 
 (defn- add-stacktrace-hook [eval-in-project project form & [h s init]]
-  (eval-in-project project (hook-form form (:color (:clj-stacktrace project)))
+  (eval-in-project project (hook-form form project)
                    h s `(do (try (require '~'clj-stacktrace.repl)
                                  (require '~'clojure.stacktrace)
                                  (catch Exception _#))