fix(presets): normalize loaded colours before pattern math

src/main.py

@@ -11,7 +11,7 @@ settings = Settings()
 print(settings)
 
 presets = Presets(settings["led_pin"], settings["num_leds"])
-presets.load()
+presets.load(settings)
 presets.b = settings.get("brightness", 255)
 # Use the default preset name from settings (set via controller or defaults)
 default_preset = settings.get("default")

src/presets.py

@@ -2,6 +2,7 @@ from machine import Pin
 from neopixel import NeoPixel
 from preset import Preset
 from patterns import Blink, Rainbow, Pulse, Transition, Chase, Circle
+from utils import convert_and_reorder_colors
 import json
 
 
@@ -35,8 +36,13 @@ class Presets:
             json.dump({name: preset.to_dict() for name, preset in self.presets.items()}, f)
         return True
 
-    def load(self):
-        """Load presets from a file."""
+    def load(self, settings=None):
+        """Load presets from a file.
+
+        `settings` is used to convert hex strings in `c` to RGB tuples and apply
+        the device's colour order (same as ESPNow receive). If omitted, RGB order
+        is assumed.
+        """
         try:
             with open("presets.json", "r") as f:
                 data = json.load(f)
@@ -46,10 +52,13 @@ class Presets:
             self.save()
             return True
 
+        order = settings if settings is not None else "rgb"
         self.presets = {}
         for name, preset_data in data.items():
             if "c" in preset_data:
-                preset_data["c"] = [tuple(color) for color in preset_data["c"]]
+                preset_data["c"] = convert_and_reorder_colors(
+                    preset_data["c"], order
+                )
             self.presets[name] = Preset(preset_data)
         if self.presets:
             print("Loaded presets:")

src/utils.py

@@ -43,8 +43,8 @@ def convert_and_reorder_colors(colors, settings_or_color_order):
             reordered = (rgb[channel_order[0]], rgb[channel_order[1]], rgb[channel_order[2]])
             converted_colors.append(reordered)
         elif isinstance(color, (list, tuple)) and len(color) == 3:
-            # Already a tuple/list, just reorder
-            rgb = tuple(color)
+            # Already a tuple/list, just reorder (JSON may use string numbers)
+            rgb = tuple(int(x) for x in color)
             reordered = (rgb[channel_order[0]], rgb[channel_order[1]], rgb[channel_order[2]])
             converted_colors.append(reordered)
         else:

test/test_espnow_receive.py

@@ -644,7 +644,7 @@ def test_preset_save_load():
     assert patterns.save(), "Save should return True"
 
     reloaded = Presets(settings["led_pin"], settings["num_leds"])
-    assert reloaded.load(), "Load should return True"
+    assert reloaded.load(settings), "Load should return True"
     
     preset = reloaded.presets.get("saved_preset")
     assert preset is not None, "Preset should be loaded"