feat: adding the background image and background color

[gayu999Code]

Fixes: #13

option to canvas

Pull Request Format

PR Naming

Issue #0 : To add background to canvas #21 solved

Type of PR

Add X in the box to specify the improvement type. -[x] Bug fix -[x] Feature enhancement Description This pull request aims to so here I have added the background image and Background color option

Screenshots / Videos (if applicable)

Before:

We where having only one color canvas(white)

After:

Now there is option of background image and background color . Here we have the color full canvas

Checklist

Add X in the box to specify. -[x] I have performed a self-review of my code. -[x] I have tested the changes thoroughly before submitting this pull request. -[x] I have provided relevant issue numbers, screenshots after making the changes.

Thank you for reviewing my pull request!

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[vishanurag]

Please mention your issue no.

In the following format:

Fixes: #issue_no

[vishanurag]

Please resolve the merge conflicts.

[gayu999Code]

@vishanurag I have resolved the conflict please review that