Add layout to track hex selection.

render_test/hexmap.kv

@@ -0,0 +1,13 @@
+#:import utils kivy.utils
+
+BoxLayout:
+    orientation: 'horizontal'
+    HexMap:
+        id: map
+        size_hint: .8, 1
+    MapLabel:
+        id: coords
+        size_hint: .2, 1
+
+<MapLabel@Label>:
+    text: 'Change me'

render_test/main.py

@@ -4,8 +4,6 @@ from kivy.uix.widget import Widget
 from kivy.utils import get_color_from_hex
 
 HEX_SIZE = 100
-NUMBER_OF_HEXES = 2
-
 HORIZONTAL_BUFFER = 0.9
 VERTICAL_BUFFER = 0.8
 
@@ -64,8 +62,7 @@ class HexMap(Widget):
 
 
 class HexMapApp(App):
-    def build(self):
-        return HexMap()
+    pass
 
 
 if __name__ == '__main__':