working prototype

source/node_t.h

@@ -0,0 +1,15 @@
+#ifndef NODE_TYPE_H
+#define NODE_TYPE_H
+
+/* Yes, we do have a class hierarchy too, however thats opaque to 'main.cpp'.
+ * 'main.cpp' only uses these to apply styling, it does not care about anything else
+ *   and thats how its should be.
+ */
+
+typedef enum {
+    DEFAULT,
+    INTERFACE,
+    SYSTEM,
+} node_t;
+
+#endif