Fixing Color picker and other Undefined errors

[championpaddler]

Fixes #515

Checklist

• [x] I have read the Contribution & Best practices Guide and my PR follows them.
• [x] My branch is up-to-date with the Upstream master branch.
• [x] The unit tests pass locally with my changes
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have added necessary documentation (if appropriate)
• [ ] All the functions created/modified in this PR contain relevant docstrings.

Short description of what this resolves:

Fixing Color picker error and other undefined errors

[championpaddler]

@hkedia321 Please review.

[championpaddler]

@zamhaq @hkedia321 @mariobehling Please review.

[championpaddler]

@gabru-md @DNS-404 Please review.

[championpaddler]

@samagragupta Done. You can check now.

[championpaddler]

@Akshat-Jain @akshatnitd Please review.

[championpaddler]

@fragm3 Resolved issue.

[championpaddler]

@fragm3 Please review.

[championpaddler]

@hkedia321 Please review and merge.