Fix bar chart colors

[kean]

Fixes #23709

RCA

In one of the previous releases, func primary was moved to UIColor without implementing a Jetpack-specific variant.

In the previous versions, these would map to:

// wp
static let primary = MurielColor(name: .blue)
// jp
static let primary = MurielColor(name: .jetpackGreen)

To test:

Regression Notes

1. Potential unintended areas of impact

2. What I did to test those areas of impact (or what existing automated tests I relied on)

3. What automated tests I added (or what prevented me from doing so)

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding unit tests for my changes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

Testing checklist:

• WordPress.com sites and self-hosted Jetpack sites.
• Portrait and landscape orientations.
• Light and dark modes.
• Fonts: Larger, smaller and bold text.
• High contrast.
• VoiceOver.
• Languages with large words or with letters/accents not frequently used in English.
• Right-to-left languages. (Even if translation isn’t complete, formatting should still respect the right-to-left layout)
• iPhone and iPad.
• Multi-tasking: Split view and Slide over. (iPad)

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 25.5. The due date for this milestone has already passed. Please assign it to a milestone with a later deadline or check whether the release for this milestone has already been finished.

Generated by 🚫 Danger

[kean]

There is a bit of a mess with this naming, and it might be worth refining it later.

• brand is a confusing name because A8C has multiple brands and wpios sometimes uses Jetpack brand colors
• WordPressBlue is a confusing name because it's actually "WordPress.Com Blue"
• primary is a confusing name because in SwiftUI Color.primary typically means primary text color (black/white)
• tint is a confusing name because jpios sometimes uses .label and sometimes uses Jetpack green as a tint color

I don't have suggestions how to solve it because a lot of this complexity isn't incidental.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress Alpha by scanning the QR code below to install the corresponding build.

	App Name	WordPress Alpha
	Configuration	Release-Alpha
	Build Number	pr23712-30056b6
	Version	25.4.1
	Bundle ID	org.wordpress.alpha
	Commit	30056b6
	App Center Build	WPiOS - One-Offs #10878

Automatticians: You can use our internal self-serve MC tool to give yourself access to App Center if needed.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack Alpha by scanning the QR code below to install the corresponding build.

	App Name	Jetpack Alpha
	Configuration	Release-Alpha
	Build Number	pr23712-30056b6
	Version	25.4.1
	Bundle ID	com.jetpack.alpha
	Commit	30056b6
	App Center Build	jetpack-installable-builds #9919

Automatticians: You can use our internal self-serve MC tool to give yourself access to App Center if needed.

[kean]

I haven't tested every single place where these are used, but there are a bit obscure parts, and the logic seems sound as it's simply revert to the previous behavior.