diff --git a/Drone/animation_lib.py b/Drone/animation_lib.py
index 3906ac2..c78cbda 100644
--- a/Drone/animation_lib.py
+++ b/Drone/animation_lib.py
@@ -36,7 +36,7 @@ def get_id(filepath="animation.csv"):
     try:
         animation_file = open(filepath)
     except IOError:
-        logger.error("File {} can't be opened".format(filepath))
+        logger.debug("File {} can't be opened".format(filepath))
         anim_id = "No animation"
         return anim_id
     else:
@@ -57,7 +57,7 @@ def get_start_xy(filepath="animation.csv", x_ratio=1, y_ratio=1, z_ratio=1):
     try:
         animation_file = open(filepath)
     except IOError:
-        logger.error("File {} can't be opened".format(filepath))
+        logger.debug("File {} can't be opened".format(filepath))
         anim_id = "No animation"
         return float('nan'), float('nan')
     else:
@@ -89,7 +89,7 @@ def load_animation(filepath="animation.csv", x0=0, y0=0, z0=0, x_ratio=1, y_rati
     try:
         animation_file = open(filepath)
     except IOError:
-        logging.error("File {} can't be opened".format(filepath))
+        logger.debug("File {} can't be opened".format(filepath))
         anim_id = "No animation"
     else:
         with animation_file:
diff --git a/Drone/config/spec/configspec_client.ini b/Drone/config/spec/configspec_client.ini
index 37038bb..0a6f063 100644
--- a/Drone/config/spec/configspec_client.ini
+++ b/Drone/config/spec/configspec_client.ini
@@ -2,17 +2,17 @@ config_name = string(default='Copter config')
 config_version = float(default=0.0)
 
 [SERVER]
-port = integer(default=25000)
+port = integer(default=25000, min=1)
 host = ip_addr(default=192.168.1.101) # string?
 buffer_size = integer(default=1024)
 
 [BROADCAST]
 use = boolean(default=True)
-port = integer(default=8181)
+port = integer(default=8181, min=1)
 
 [TELEMETRY]
 transmit = boolean(default=True)
-frequency = float(default=1.0)
+frequency = float(default=1.0, min=0)
 log_resources = boolean(default=True)
 
 [VISUAL POSE WATCHDOG]
@@ -31,9 +31,10 @@ frame_id = string(default=map)
 takeoff_height = float(default=1.0)
 takeoff_time = float(default=5.0, min=0)
 safe_takeoff = boolean(default=False)
-reach_first_point_time = float(default=5.0)
+reach_first_point_time = float(default=5.0, min=0)
 land_time = float(default=1.0, min=0)
 land_timeout = float(default=10.0, min=0)
+# __list__ x y z
 common_offset = float_list(default=list(0, 0, 0), min=3, max=3)
 
 [FLOOR FRAME]
@@ -75,4 +76,4 @@ restart_after_rename = boolean(default=True)
 [NTP]
 use = boolean(default=False)
 host = string(default=ntp1.stratum2.ru)
-port = integer(default=123)
+port = integer(default=123, min=1)
diff --git a/Server/config_editor_models.py b/Server/config_editor_models.py
index c9c8258..20f9259 100644
--- a/Server/config_editor_models.py
+++ b/Server/config_editor_models.py
@@ -5,7 +5,7 @@ from functools import partial
 from copy import deepcopy
 
 from PyQt5 import QtCore, QtGui, QtWidgets
-from PyQt5.QtCore import Qt as Qt, pyqtSlot
+from PyQt5.QtCore import Qt, pyqtSlot
 from PyQt5.QtGui import QCursor
 from PyQt5.QtWidgets import QAbstractItemView, QTreeView, QMenu, QAction, QMessageBox, QInputDialog, QFileDialog
 
@@ -23,8 +23,8 @@ import config
 
 states_colors = {
     'normal': Qt.white,
-    'unchanged': Qt.darkGray,
-    'default': Qt.lightGray,
+    'unchanged': Qt.blue,
+    'default': Qt.cyan,
     'edited': Qt.yellow,
     'added': Qt.green,
     'deleted': Qt.red,