diff --git a/include/lv_conf.h b/include/lv_conf.h
index cd9a733..841726e 100644
--- a/include/lv_conf.h
+++ b/include/lv_conf.h
@@ -867,10 +867,10 @@
 /* Documentation for themes can be found here: https://docs.lvgl.io/master/common-widget-features/styles/styles.html#themes . */
 
 /** A simple, impressive and very complete theme */
-#define LV_USE_THEME_DEFAULT 1
+#define LV_USE_THEME_DEFAULT 0
 #if LV_USE_THEME_DEFAULT
     /** 0: Light mode; 1: Dark mode */
-    #define LV_THEME_DEFAULT_DARK 0
+    #define LV_THEME_DEFAULT_DARK 1
 
     /** 1: Enable grow on press */
     #define LV_THEME_DEFAULT_GROW 1
@@ -880,10 +880,10 @@
 #endif /*LV_USE_THEME_DEFAULT*/
 
 /** A very simple theme that is a good starting point for a custom theme */
-#define LV_USE_THEME_SIMPLE 1
+#define LV_USE_THEME_SIMPLE 0
 
 /** A theme designed for monochrome displays */
-#define LV_USE_THEME_MONO 1
+#define LV_USE_THEME_MONO 0
 
 /*==================
  * LAYOUTS
diff --git a/include/theme.h b/include/theme.h
index 9cedab7..066c4b1 100644
--- a/include/theme.h
+++ b/include/theme.h
@@ -17,20 +17,20 @@ constexpr int SCREEN_H = 480;
 //   TEXT      0xFFFF  white
 //   TEXT_DIM  0x8410  mid grey
 inline lv_color_t bg()        { return lv_color_hex(0x000000); }
-inline lv_color_t bgCard()    { return lv_color_hex(0x1C1C1E); }
+inline lv_color_t bgCard()    { return lv_color_hex(0x808080); }
 inline lv_color_t text()      { return lv_color_hex(0xFFFFFF); }
 inline lv_color_t textDim()   { return lv_color_hex(0x9A9A9E); }
 
 // Tile accent backgrounds (muted, iOS-dark-mode style).
 inline lv_color_t accentWeather()  { return lv_color_hex(0x1B3A5C); } // muted blue
-inline lv_color_t accentCalendar() { return lv_color_hex(0x3A2A5C); } // muted purple
-inline lv_color_t accentMvg()      { return lv_color_hex(0x2C5C3A); } // muted green
+inline lv_color_t accentCalendar() { return lv_color_hex(0x9A9A9E); } // grey subline
+inline lv_color_t accentMvg()      { return lv_color_hex(0xC00000); } // red for delay
 
 // Symbol / status colors.
 inline lv_color_t accentSun()      { return lv_color_hex(0xFBC02D); }
 inline lv_color_t accentRain()     { return lv_color_hex(0x4FC3F7); }
-inline lv_color_t accentUBahn()    { return lv_color_hex(0xE62D2D); } // MVV U-Bahn red
-inline lv_color_t accentSBahn()    { return lv_color_hex(0x1A7A3A); } // MVV S-Bahn green
+inline lv_color_t accentUBahn()    { return lv_color_hex(0x0079F6); } // MVG U-Bahn blue
+inline lv_color_t accentSBahn()    { return lv_color_hex(0x0CB87E); } // MVG S-Bahn green
 inline lv_color_t accentWarn()     { return lv_color_hex(0xFFB300); }
 inline lv_color_t accentError()    { return lv_color_hex(0xF44336); }
 inline lv_color_t accentStorm()    { return lv_color_hex(0xFFD54F); }