diff --git a/benchmark/space/__init__.py b/benchmark/space/__init__.py
index ab3acc5..3b79321 100644
--- a/benchmark/space/__init__.py
+++ b/benchmark/space/__init__.py
@@ -775,10 +775,12 @@ class BENCHMARK_OT_save(bpy.types.Operator):
     def execute(self, context):
         with open(self.filepath, "w") as f:
             f.write(json.dumps(global_result_dict, sort_keys=True, indent=2))
+        make_buttons_green()
         return {'FINISHED'}
 
     def invoke(self, context, event):
         import os
+        make_buttons_default()
 
         if not self.filepath:
             self.filepath = os.path.join(
@@ -788,6 +790,9 @@ class BENCHMARK_OT_save(bpy.types.Operator):
         wm.fileselect_add(self)
         return {'RUNNING_MODAL'}
 
+    def cancel(self, context):
+        make_buttons_green()
+
 class BENCHMARK_OT_share(bpy.types.Operator):
     bl_idname = "benchmark.share"
     bl_label = "Share Benchmark Result"
@@ -842,13 +847,39 @@ def compute_device_list_get(self, context):
 ################################################################################
 # Tweak User Preferences
 
+default_wcol_tool_inner = None
+default_wcol_tool_inner_sel = None
+default_wcol_tool_outline = None
+def backup_buttons_colors():
+    global default_wcol_tool_inner
+    global default_wcol_tool_inner_sel
+    global default_wcol_tool_outline
+    userpref = bpy.context.user_preferences
+    theme = userpref.themes[0]
+    default_wcol_tool_inner = theme.user_interface.wcol_tool.inner[:]
+    default_wcol_tool_inner_sel = theme.user_interface.wcol_tool.inner_sel[:]
+    default_wcol_tool_outline = theme.user_interface.wcol_tool.outline[:]
+
+def make_buttons_green():
+    userpref = bpy.context.user_preferences
+    theme = userpref.themes[0]
+    theme.user_interface.wcol_tool.inner = [0.408, 0.690, 0.129, 1.0]
+    theme.user_interface.wcol_tool.inner_sel = [0.308, 0.590, 0.029, 1.0]
+    theme.user_interface.wcol_tool.outline = [0.408, 0.690, 0.129]
+
+def make_buttons_default():
+    userpref = bpy.context.user_preferences
+    theme = userpref.themes[0]
+    theme.user_interface.wcol_tool.inner = default_wcol_tool_inner
+    theme.user_interface.wcol_tool.inner_sel = default_wcol_tool_inner_sel
+    theme.user_interface.wcol_tool.outline = default_wcol_tool_outline
+
 userpref = bpy.context.user_preferences
 theme = userpref.themes[0]
-theme.user_interface.wcol_tool.inner = [0.408, 0.690, 0.129, 1.0]
-theme.user_interface.wcol_tool.inner_sel = [0.308, 0.590, 0.029, 1.0]
-theme.user_interface.wcol_tool.outline = [0.408, 0.690, 0.129]
 userpref.view.use_quit_dialog = False
 theme.benchmark.space.back = [0.26, 0.26, 0.26]
+backup_buttons_colors()
+make_buttons_green()
 
 style = userpref.ui_styles[0]
 style.widget.points = 12