Renamed argument from col to clr

src/apr.rs

@@ -70,9 +70,9 @@ impl Apr {
         })
     }
 
-    pub fn set_colour(&mut self, r: usize, c: usize, col: u8) {
+    pub fn set_colour(&mut self, r: usize, c: usize, clr: u8) {
         //You should only modify self.board through this method.
-        self.board.board[r][c] = col; //Making a getter for self.board would sadly break borrowing in the same way that closest_square_coords does.
+        self.board.board[r][c] = clr; //Making a getter for self.board would sadly break borrowing in the same way that closest_square_coords does.
         self.should_update_grid = true; //Similar solutions apply.
     }
 }