diff --git a/survBot.py b/survBot.py
index e1c16a9..d117ed6 100755
--- a/survBot.py
+++ b/survBot.py
@@ -514,7 +514,7 @@ class SurveillanceBot(object):
 
                 # write footer with optional logo
                 logo_file = self.parameters.get('html_logo')
-                if not os.path.isfile(logo_file):
+                if not os.path.isfile(pjoin(self.outpath_html, logo_file)):
                     print(f'Specified file {logo_file} not found.')
                     logo_file = None
 
diff --git a/utils.py b/utils.py
index 07fa9c9..db2dbac 100644
--- a/utils.py
+++ b/utils.py
@@ -1,8 +1,6 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from functools import partial
-
 import matplotlib
 import numpy as np
 
@@ -36,7 +34,7 @@ def get_bg_color(check_key, status, dt_thresh=None, hex=False):
 
 
 def get_color(key):
-    # some GUI default colors
+    # some old GUI default colors
     # colors_dict = {'FAIL': (255, 85, 50, 255),
     #                'NO DATA': (255, 255, 125, 255),
     #                'WARN': (255, 255, 80, 255),
@@ -45,8 +43,8 @@ def get_color(key):
     #                'disc': (255, 160, 40, 255),}
     colors_dict = {'FAIL': (195, 29, 14, 255),
                    'NO DATA': (255, 255, 125, 255),
-                   'WARN': (249, 238, 139, 255),
-                   'OK': (179, 219, 153, 255),
+                   'WARN': (250, 192, 63, 255),
+                   'OK': (185, 245, 145, 255),
                    'undefined': (240, 240, 240, 255),
                    'disc': (126, 127, 131, 255), }
     return colors_dict.get(key)
@@ -67,16 +65,11 @@ def get_time_delay_color(dt, dt_thresh):
     return get_color('FAIL')
 
 
-def get_warn_color(count):
-    #color = (min([255, 220 + count ** 2]), 255, 80, 255)
-    n_colors = 20
-    r = np.linspace(204, 249, n_colors, dtype=int)
-    g = np.linspace(226, 238, n_colors, dtype=int)
-    b = np.linspace(149, 139, n_colors, dtype=int)
-    pad = partial(np.pad, pad_width=(0, 100), mode='edge')
-    r, g, b = map(pad, [r, g, b])
-    color = (r[count], g[count], b[count], 255)
-    return color
+def get_warn_color(count, n_colors=20):
+    if count > n_colors:
+        count = -1
+    gradient = np.linspace((240, 245, 110, 255), (250, 192, 63, 255), n_colors, dtype=int)
+    return tuple(gradient[count])
 
 
 def get_mass_color(message):
@@ -252,4 +245,4 @@ def plot_threshold_lines(fig, channel_threshold_list, parameters, **kwargs):
             if isinstance(warn_thresh, str):
                 warn_thresh = parameters.get('THRESHOLDS').get(warn_thresh)
             if type(warn_thresh in (float, int)):
-                ax.axhline(warn_thresh, **kwargs)
\ No newline at end of file
+                ax.axhline(warn_thresh, **kwargs)
diff --git a/write_utils.py b/write_utils.py
index d595c06..a042e89 100644
--- a/write_utils.py
+++ b/write_utils.py
@@ -40,11 +40,11 @@ def get_mail_html_header():
 
 
 def init_html_table():
-    return '<div id="managerTable" ><table style="width:100%">\n'
+    return '<table style="width:100%">\n'
 
 
 def finish_html_table():
-    return '</table></div>\n'
+    return '</table>\n'
 
 
 def html_footer(footer_logo=None):
@@ -79,11 +79,9 @@ def get_html_row(items, html_key='td'):
         if item.get('italic'):
             text = '<i>' + text + '</i>'
         tooltip = item.get('tooltip')
-        color = item.get('color')
-        # check for black background of headers (shouldnt happen anymore)
-        color = '#e6e6e6' if color == '#000000' else color
         font_color = item.get('font_color')
         hyperlink = item.get('hyperlink')
+        color = 'transparent' if hyperlink else item.get('color')
         text_str = get_html_link(text, hyperlink) if hyperlink else text
         html_class = item.get('html_class')
         class_str = f' class="{html_class}"' if html_class else ''