diff --git a/fortune_generator/json/themes.json b/fortune_generator/json/themes.json
index 78ef323..047b410 100644
--- a/fortune_generator/json/themes.json
+++ b/fortune_generator/json/themes.json
@@ -39,10 +39,10 @@
       "properties": {
         "bg-color": "#dce9ef",
         "good-fortune-color": "#91c9ef",
-        "bad-fortune-color": "#C57e4D",
+        "bad-fortune-color": "#c57e4d",
         "middle-fortune-color": "#cfbbc0",
         "title-color": "#ffc348",
-        "desc-color": "#726D63",
+        "desc-color": "#726d63",
         "button-color": "#7567b8aa",
         "button-hover-color": "#7567b8dd",
         "toggle-theme-button-color": "#7c6543",