In RGB mode, brightness level 1 now triggers a night light mode that actually uses the RGB settings. So this makes it possible to have a night light in a specific color, instead of only the default night light setting. In white light mode, this default is used, so color temperature does not affect the night light color.

color_night_light.h

@@ -13,11 +13,26 @@ class ColorNightLight : public GPIOOutputs {
 public:
     bool set_light_color_values(light::LightColorValues v) {
         values = v;
-        // Based on measurements using the original device firmware.
-        red   = 0.968f;
-        green = 0.968f;
-        blue  = 0.972f;
-        white = 0.0f;
+
+        // This night light mode is activated when white light is selected.
+        // Based on measurements using the original device firmware, so it
+        // matches the night light of the original firmware.
+        if (v.get_white() > 0) {
+            red = 0.968f;
+            green = 0.968f;
+            blue = 0.972f;
+            white = 0.0f;
+        }
+        // In RGB mode, the selected color is used to give the night light
+        // a specific color, instead of the default. This is a nice extra
+        // for this firmware, as the original firmware does not support it.
+        else {
+            red = 0.9997f - v.get_red() * (0.9997f - 0.9680f);
+            green = 0.9997f - v.get_green() * (0.9997f - 0.9680f);
+            auto blue_on = 0.9720f + (0.9680f - 0.9720f) *  (1.0f - (v.get_red() + v.get_green())/2.0f);
+            blue = 0.9997f - v.get_blue() * (0.9997f - blue_on);
+            white = 0.0f;
+        }
 
         return true;
     }