diff --git a/data/.~lock.ringe_short.xlsx# b/data/.~lock.ringe_short.xlsx#
new file mode 100644
index 0000000..013ddb9
--- /dev/null
+++ b/data/.~lock.ringe_short.xlsx#
@@ -0,0 +1 @@
+,someone,nixMain,31.03.2026 11:57,file:///home/someone/.config/yolk/eggs/libreoffice/4;
\ No newline at end of file
diff --git a/data/ringe_short.xlsx b/data/ringe_short.xlsx
index 312442b..795a686 100644
Binary files a/data/ringe_short.xlsx and b/data/ringe_short.xlsx differ
diff --git a/fledermaus_formatter/instructions/mappings.py b/fledermaus_formatter/instructions/mappings.py
index 03bf651..b6f8bb5 100644
--- a/fledermaus_formatter/instructions/mappings.py
+++ b/fledermaus_formatter/instructions/mappings.py
@@ -313,14 +313,20 @@ SPICIES = {
 }
 
 CATCHED_BY = {
-    "Nfg": [*add_cased_options("nfg")],
+    "Nfg": [*add_cased_options("nfg"),
+            *add_cased_options("nf")],
     "KK": [*add_cased_options("kk"), 
            *add_cased_options("überwinterungskästen"), 
            *add_cased_options("kastenkontrolle"),
            *add_cased_options("kasten")],
-    "WQK": [*add_cased_options("wqk"), 
+    "WQK": [*add_cased_options("wqk"),
+            *add_cased_options("Winterquartierkontrolle"),
+            *add_cased_options("Winterquartierkasten"),
+            *add_cased_options("Winterquartier"),
             *add_cased_options("kontrolle")],
-    "Wst": [*add_cased_options("wst")],
+    "Wst": [*add_cased_options("wst"),
+            *add_cased_options("Wochenstuben"),
+            *add_cased_options("Wochenstube")],
     "AFZ": [*add_cased_options("afz")],
     "Detektor": [*add_cased_options("detektor")],
 }
diff --git a/fledermaus_formatter/instructions/ring_formater.py b/fledermaus_formatter/instructions/ring_formater.py
index 9dbe12e..839a43d 100644
--- a/fledermaus_formatter/instructions/ring_formater.py
+++ b/fledermaus_formatter/instructions/ring_formater.py
@@ -76,6 +76,6 @@ ROW_INSTRUCTIONS = [
         "approximate": True,
         "threshold": "ANY", # ALL, ANY, MAJORITY of row must be collored
         "target": "Wiederfunde",
-        "value": True,
+        "value": "WAHR",
     }
 ]
\ No newline at end of file
diff --git a/fledermaus_formatter/main.py b/fledermaus_formatter/main.py
index 1415e12..059d2d0 100644
--- a/fledermaus_formatter/main.py
+++ b/fledermaus_formatter/main.py
@@ -59,7 +59,7 @@ def main():
     args = parser.parse_args()
 
     if args.v:
-        print("1.3")
+        print("1.4")
         return
     if not args.type:
         parser.error("The --type argument is required.")
diff --git a/fledermaus_formatter/table_handler/commands/find_and_replace.py b/fledermaus_formatter/table_handler/commands/find_and_replace.py
index bfbd21e..67b2828 100644
--- a/fledermaus_formatter/table_handler/commands/find_and_replace.py
+++ b/fledermaus_formatter/table_handler/commands/find_and_replace.py
@@ -15,6 +15,10 @@ class FindAndReplace:
                 if self.require_full_match and bad_name == res:
                     # Todo remove random leading/trailing spaces before if
                     res = correct_name
+                    break
                 elif not self.require_full_match:
+                    prior_val = res
                     res = res.replace(bad_name, correct_name)
+                    if prior_val != res or correct_name in res:
+                        break
         return Entry(value=res, fg_color=entry.fg_color, bg_color=entry.bg_color)
\ No newline at end of file
diff --git a/fledermaus_formatter/table_handler/commands/row_color_to_value.py b/fledermaus_formatter/table_handler/commands/row_color_to_value.py
index c33007f..96679c4 100644
--- a/fledermaus_formatter/table_handler/commands/row_color_to_value.py
+++ b/fledermaus_formatter/table_handler/commands/row_color_to_value.py
@@ -1,4 +1,11 @@
 from fledermaus_formatter.table_handler.Entry import Entry
+from math import sqrt
+
+def div_from_color(given_rgb, reqiuired_rgb):
+    r, g, b = given_rgb
+    cr, cg, cb = reqiuired_rgb
+    color_diff = sqrt((r - cr)**2 + (g - cg)**2 + (b - cb)**2)
+    return color_diff
 
 class RowColorToCalue:
     def __init__(self, target: str,
@@ -25,13 +32,13 @@ class RowColorToCalue:
 
       
     def _check_if_collection_matchers(self, collectin: dict[tuple[int, int, int]], color_place: str) -> bool:
-        threshold_sq = 130 ** 2
+        threshold_sq = 120
 
         res_map = []
         if self.approximate:
             for color in collectin:
                 is_match = any(
-                    sum((a - b) ** 2 for a, b in zip(color, allowed_color)) <= threshold_sq
+                    div_from_color(color, allowed_color) <= threshold_sq
                     for allowed_color in self.__dict__[color_place]
                 )
                 res_map.append(is_match)
diff --git a/fledermaus_formatter/table_handler/serializer.py b/fledermaus_formatter/table_handler/serializer.py
index cb85b2b..994b436 100644
--- a/fledermaus_formatter/table_handler/serializer.py
+++ b/fledermaus_formatter/table_handler/serializer.py
@@ -56,8 +56,8 @@ class TableSerializer:
                 cell = row[ws_idx]
                 data[expected_col][rid] = Entry(
                     value=str(cell._value) if not cell.value is None else "",
-                    bg_color=hex_to_rgb(cell.fill.start_color.rgb if cell.fill and cell.fill.start_color else "#0"),
-                    fg_color=hex_to_rgb(cell.font.color.rgb if cell.font and cell.font.color else "#0")
+                    bg_color=hex_to_rgb(cell.fill.end_color.rgb[2:] if cell.fill and cell.fill.start_color else "#0"),
+                    fg_color=hex_to_rgb(cell.font.color.rgb[2:] if cell.font and cell.font.color and type(cell.font.color.rgb) == str else "#0")
                 )
         return data
     
diff --git a/ringe_short_out.xlsx b/ringe_short_out.xlsx
index 67047eb..f52f388 100644
Binary files a/ringe_short_out.xlsx and b/ringe_short_out.xlsx differ