Gazebo simulation seems different as comapred to before

Hello, I am working on the services section of the ROS2 in 5 days course and I have observed that the simulation seems to be different than before. I am not able to use middle mouse button to change the screen orientation and everything seems so light colored including the robot. I have attached the image below. Please analyze it and let me know if that’s normal. In previous sections, the simulation was dark with proper colour of the robot but here things have changed.

Yes, it’s a different simulation, and it’s normal.

We are trying to keep the sim size nimble, so the colors might be lighter. If you take the robot “out of the shadows”, it should be a bit brighter.