C++ refactoring (#91)

Tactility/Source/ui/Style.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "lvgl.h"
+
+namespace tt::lvgl {
+
+void obj_set_style_bg_blacken(lv_obj_t* obj);
+void obj_set_style_bg_invisible(lv_obj_t* obj);
+void obj_set_style_no_padding(lv_obj_t* obj);
+
+/**
+ * This is to create automatic padding depending on the screen size.
+ * The larger the screen, the more padding it gets.
+ * TODO: It currently only applies a single basic padding, but will be improved later.
+ *
+ * @param obj
+ */
+void obj_set_style_auto_padding(lv_obj_t* obj);
+
+} // namespace