feat(reactive-controllers): Migrate to Colorjs from Tinycolor

[blunteshwar]

This PR marks the initial steps in our color library migration for Spectrum Web Components. As part of this effort, I have implemented an abstraction layer that includes the following key elements:

Color Types: Defined standardized types to ensure consistent handling of color data across components.
Transformation Functions: Created functions to handle color conversions and transformations, making it easier to work with various color formats.
This abstraction layer is designed to facilitate a smoother migration process and minimize the impact on our consumers. By isolating the color logic, we can easily adapt to future changes in the underlying color library.

Stay tuned for more details—there's much more to come! 🚀

Related issue(s)

#3950 ✅ (Solved)
#3883 ✅ (Solved)
#3655 ✅ (Solved)
#3071 ✅ (Solved)
#3058 ✅ (Solved)

Motivation and context

• Did it pass in Desktop?
• Did it pass in Mobile?
• Did it pass in iPad?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (minor updates related to the tooling or maintenance of the repository, does not impact compiled assets)

Checklist

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• If my change required a change to the documentation, I have updated the documentation in this pull request.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have reviewed at the Accessibility Practices for this feature, see: Aria Practices

Best practices

This repository uses conventional commit syntax for each commit message; note that the GitHub UI does not use this by default so be cautious when accepting suggested changes. Avoid the "Update branch" button on the pull request and opt instead for rebasing your branch against main.

[github-actions]

Branch preview

• Documentation Site
• Storybook

Review the following VRT differences

When a visual regression test fails (or has previously failed while working on this branch), its results can be found in the following URLs:

• Spectrum | Light | Medium | LTR
• Spectrum | Dark | Large | RTL
• Express | Light | Medium | LTR
• Express | Dark | Large | RTL
• Spectrum-two | Light | Medium | LTR
• Spectrum-two | Dark | Large | RTL
• High Contrast Mode | Medium | LTR

If the changes are expected, update the current_golden_images_cache hash in the circleci config to accept the new images. Instructions are included in that file.
If the changes are unexpected, you can investigate the cause of the differences and update the code accordingly.

[coveralls]

Pull Request Test Coverage Report for Build 13498253698

Details

• 818 of 824 (99.27%) changed or added relevant lines in 10 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.001%) to 98.178%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/color-area/src/ColorArea.ts	74	75	98.67%
tools/reactive-controllers/src/ColorController.ts	693	698	99.28%

Files with Coverage Reduction	New Missed Lines	%
packages/color-area/src/ColorArea.ts	1	95.65%

Totals
Change from base Build 13496959333:	-0.001%
Covered Lines:	33328
Relevant Lines:	33765

---

💛 - Coveralls

[github-actions]

Tachometer results

Currently, no packages are changed by this PR...

[github-actions]

Lighthouse scores

Category	Latest (report)	Main (report)	Branch (report)
Performance	0.99	0.98	0.98
Accessibility	1	1	1
Best Practices	1	1	1
SEO	1	0.92	0.92
PWA	1	1	1

What is this?

Lighthouse scores comparing the documentation site built from the PR ("Branch") to that of the production documentation site ("Latest") and the build currently on main ("Main"). Higher scores are better, but note that the SEO scores on Netlify URLs are artifically constrained to 0.92.

Transfer Size

Category	Latest	Main	Branch
Total	243.718 kB	231.29 kB 🏆	231.589 kB
Scripts	60.028 kB	54.245 kB 🏆	54.464 kB
Stylesheet	47.476 kB	42.63 kB 🏆	42.647 kB
Document	6.237 kB	5.466 kB 🏆	5.493 kB
Font	126.988 kB	126.597 kB 🏆	126.633 kB

Request Count

Category	Latest	Main	Branch
Total	52	52	52
Scripts	41	41	41
Stylesheet	5	5	5
Document	1	1	1
Font	2	2	2