forget to set fill colors on render_state

src/scene_loader.cpp

@@ -130,9 +130,9 @@ slParseHexGrid(slSceneDoc* sd, hexgrid& hg, uint32& fill_color, uint32&selected_
 	hg.position.y = pos.y;
 	hg.position.z = pos.z;
 	std::string fill_color_str = json_grid["fill_color"].GetString();
-	hg.fill_color = std::stoul(fill_color_str, nullptr, 16);
+	hg.fill_color = fill_color = std::stoul(fill_color_str, nullptr, 16);
 	std::string selected_fill_color_str = json_grid["selected_fill_color"].GetString();
-	hg.selected_fill_color = std::stoul(selected_fill_color_str, nullptr, 16);
+	hg.selected_fill_color = selected_fill_color = std::stoul(selected_fill_color_str, nullptr, 16);
 	std::string orientation_str = json_grid["hexlib_orientation"].GetString();
 	hg.hexlib_orientation = (orientation_str == "layout_flat") ? layout_flat : layout_pointy;
 	Layout lo(hg.hexlib_orientation, Point(hg.hex_size, hg.hex_size), Point(hg.position.x, hg.position.y));