Added visual hints on summary page

summary_page.py

@@ -48,9 +48,14 @@ def draw_text_and_bar(
     """Draw a horizontal bar chart for given stats and its label on the left."""
     # Text
     label_x = column_left_position - LABEL_OFFSET
+    failures_present = any(stats[category] > 0 for category in ['failed', 'error'])
+    if failures_present:
+        props = dict(boxstyle='round', facecolor=COLORS['failed'], alpha=0.35)
+    else:
+        props = dict(alpha=0)
     ax.text(
         label_x, y_bar, label, ha='right', va='center', color='#CCCCCC', fontsize=LABEL_FONT_SIZE,
-        fontfamily='monospace', fontweight='normal'
+        fontfamily='monospace', fontweight='normal', bbox=props
     )
     # Bar
     total = sum(stats.values())