* refactor of Color mapping in UITasks / DisplayDrivers

* color displays now with a new light theme

variants/lilygo_techo_card/platformio.ini

@@ -23,7 +23,7 @@ build_src_filter = ${nrf52_base.build_src_filter}
   +<helpers/*.cpp>
   +<TechoCardBoard.cpp>
   +<helpers/sensors/EnvironmentSensorManager.cpp>
-  +<helpers/ui/U8g2Display.h>
+  +<helpers/ui/U8g2Display.cpp>
   +<helpers/ui/MomentaryButton.cpp>
   +<../variants/lilygo_techo_card>
 lib_deps =