Toggle light / dark theme

https://www.youtube.com/watch?v=PFw4tSuXIyc&t=1s

https://www.youtube.com/watch?v=ndEf0EHcgKY&t=1s

https://www.youtube.com/watch?v=88o8P0q4Bg8&t=1s&fbclid=IwAR10mQSx4vH5Qca_ere1CGI1_sFJq0D5ioZbrUA7Ae_Vpdo_7W5ZD__cQAA

https://www.youtube.com/watch?v=A1ICB0-MCok&t=1s

https://www.youtube.com/watch?v=c8F57ZaE9bw&t=1s

https://www.youtube.com/watch?v=YoYwqAd9aeY

https://www.youtube.com/watch?v=-Hv2AOa0YOo&t=1s

https://www.youtube.com/watch?v=j8_6iBP6hqM&t=1s

https://www.youtube.com/watch?v=Omjjk6XXdIM

https://www.youtube.com/watch?v=xxILxijmub4