Change the background to plain as current pattern distract while reading

[jnoorul]

Is your feature request related to a problem? Please describe.

The current design makes it to difficult to read the answers for the users due to the patterns running in the background.
Plain background will make it easier to read.

Describe the solution you'd like
I would like the change the background to plain color and remove the pattern, so that is better for our users to read without distraction.

Describe alternatives you've considered
None.

Additional context
None