Tried to set the background color in the ftxui canvas and weirdly it started doing almost what I want with lighting, but I didn't write any code to do that. There's some bug in how I'm doing it that's causing it to set the colors...correctly. Must find out why.

gui.hpp

@@ -39,6 +39,8 @@ struct ActionLog {
 const int GAME_MAP_POS = 600;
 
 class GUI {
+  sf::RectangleShape $darkness;
+  sf::Texture $light_test;
   string $status_text = "NOT DEAD";
   Canvas $canvas;
   Map& $game_map;