Custom colors, initialize level with void.

src/level.zig

@@ -42,7 +42,7 @@ pub fn init(allocator: *std.mem.Allocator, width: u16, height: u16) !Self {
     // Fill with default value to avoid undefined behavior.
     var i: u32 = 0;
     while (i < size) : (i += 1) {
-        self.content[i] = 1;
+        self.content[i] = 0;
         self.selection[i] = false;
     }
     return self;
@@ -66,8 +66,8 @@ pub fn draw(self: *Self, scale: u16, offset: Vec2) void {
         while (cy < self.height) {
             const cell_content: cell_type = self.content[cy * self.width + cx];
             const color = switch (cell_content) {
-                0 => ray.BLACK,
-                1 => ray.GRAY,
+                0 => ray.Color{ .r = 26, .g = 26, .b = 26, .a = 255 },
+                1 => ray.Color{ .r = 144, .g = 144, .b = 144, .a = 255 },
                 else => ray.PURPLE, //unknown
             };
             ray.DrawRectangle(x + 1, y + 1, scale - 2, scale - 2, color);