diff --git a/gradience/backend/theming/monet.py b/gradience/backend/theming/monet.py
index c22d8419..ea2ac5d6 100644
--- a/gradience/backend/theming/monet.py
+++ b/gradience/backend/theming/monet.py
@@ -109,6 +109,8 @@ class Monet:
                 "card_bg_color": argb_to_color_code(light_theme.primary, "0.05"),
                 "card_fg_color": argb_to_color_code(light_theme.onSecondaryContainer),
                 "card_shade_color": argb_to_color_code(light_theme.shadow, "0.07"),
+                "thumbnail_bg_color": argb_to_color_code(light_theme.secondaryContainer),
+                "thumbnail_fg_color": argb_to_color_code(light_theme.onSecondaryContainer),
                 "dialog_bg_color": argb_to_color_code(light_theme.secondaryContainer),
                 "dialog_fg_color": argb_to_color_code(light_theme.onSecondaryContainer),
                 "popover_bg_color": argb_to_color_code(light_theme.secondaryContainer),
@@ -148,6 +150,8 @@ class Monet:
                 "card_bg_color": argb_to_color_code(dark_theme.primary, "0.05"),
                 "card_fg_color": argb_to_color_code(dark_theme.onSecondaryContainer),
                 "card_shade_color": argb_to_color_code(dark_theme.shadow, "0.07"),
+                "thumbnail_bg_color": argb_to_color_code(dark_theme.secondaryContainer),
+                "thumbnail_fg_color": argb_to_color_code(dark_theme.onSecondaryContainer),
                 "dialog_bg_color": argb_to_color_code(dark_theme.secondaryContainer),
                 "dialog_fg_color": argb_to_color_code(dark_theme.onSecondaryContainer),
                 "popover_bg_color": argb_to_color_code(dark_theme.secondaryContainer),