help me find an application

is there an application we can set the whole screen to background color like these on windows?

https://preview.redd.it/u5l6wmb5n60f1.png?width=1868&format=png&auto=webp&s=3d149566daabb27eb6d9564764fb2fe3d7ee60c9

https://preview.redd.it/x32p2mb5n60f1.png?width=1869&format=png&auto=webp&s=fc307a1c67bcbeee10512bca63309fc36b024194

https://preview.redd.it/2lk5vnb5n60f1.png?width=1868&format=png&auto=webp&s=104b9711653c6597352ec9302fdfbe964f32d7e6