Initial commit

include/theme.h

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+#pragma once
+#include <M5Stack.h>
+
+// "iPhone Dark Mode" inspired theme: near-black background, white text,
+// desaturated accent colors used sparingly.
+
+namespace Theme {
+    constexpr uint16_t BG        = 0x0000; // near-black background
+    constexpr uint16_t BG_CARD   = 0x1082; // slightly lighter card background (dark gray)
+    constexpr uint16_t TEXT      = 0xFFFF; // white
+    constexpr uint16_t TEXT_DIM  = 0x8410; // light gray, secondary text
+
+    constexpr uint16_t ACCENT_WEATHER = 0x051D; // muted blue
+    constexpr uint16_t ACCENT_SUN     = 0xFEA0; // warm yellow
+    constexpr uint16_t ACCENT_RAIN    = 0x03BF; // muted cyan/blue
+    constexpr uint16_t ACCENT_CALENDAR= 0x7BEF; // muted lavender/gray
+    constexpr uint16_t ACCENT_UBAHN   = 0x0410; // U-Bahn blue (muted)
+    constexpr uint16_t ACCENT_SBAHN   = 0x0540; // S-Bahn green (muted)
+    constexpr uint16_t ACCENT_WARN    = 0xFB00; // muted orange for delays/warnings
+    constexpr uint16_t ACCENT_ERROR   = 0xF800; // red for errors/cancellations
+
+    constexpr int SCREEN_W = 320;
+    constexpr int SCREEN_H = 240;
+}