feat(breadcrumb): [breadcrumb] Add dark theme

[wuyiping0628]

PR

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Please check if your PR fulfills the following requirements:

• The commit message follows our Commit Message Guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

Summary by CodeRabbit

• Style
  • Enhanced the visual appearance of breadcrumb navigation.
  • Introduced a distinct color for the last breadcrumb item.
  • Updated theme colors for breadcrumb text and separator icons for a more refined look.

[coderabbitai]

Walkthrough

This pull request enhances the breadcrumb component’s styling. It introduces a new CSS variable for the last breadcrumb item's text color and updates existing color variable references. In the LESS files, additional styling is applied to ensure that the last breadcrumb item and its link use the new variable. The changes modify only the visual aspects without altering any control flow or public API declarations.

Changes

File(s)

Change Summary

packages/theme/src/breadcrumb/index.less packages/theme/src/breadcrumb/vars.less

Added a new color variable (--tv-Breadcrumb-last-text-color set to var(--tv-color-text-active-3)) for the last breadcrumb text. In index.less, the last breadcrumb item and its anchor now use this variable. In vars.less, updated the breadcrumb text and separator colors by changing --tv-Breadcrumb-text-color to var(--tv-color-text-control) and --tv-Breadcrumb-separator-icon-color to var(--tv-color-text-placeholder).

Possibly related PRs

• feat(breadcrumb): [breadcrumb] modify delimiter #2576: Modified the breadcrumb's visual representation by adjusting the separator styling, aligning with the theme enhancements.
• feat(site): the official website adds the function of dynamically switching between light and dark themes #2911: Introduced a new color variable for the last breadcrumb text, directly related to the changes in this PR.
• feat(theme): [button] add dark themes, modify other theme variables and component level variables #2898: Adjusted color properties in the breadcrumb component to incorporate new variable usage for consistent theming.

Suggested labels

enhancement

Suggested reviewers

• zzcr

Poem

Oh, what a hop, a new style in view,
A twinkling trail with colors so true!
I’ve painted the last crumb with a vibrant hue,
Bounding through code, joyful and new 🐰✨
In the theme of change, every detail is due!

Hop on, celebrate the art we renew!

---

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📥 Commits

Reviewing files that changed from the base of the PR and between 02e08e9 and 1c210a9.

📒 Files selected for processing (2)

• packages/theme/src/breadcrumb/index.less (1 hunks)
• packages/theme/src/breadcrumb/vars.less (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (1)

• GitHub Check: PR E2E Test (pnpm test:e2e3)

🔇 Additional comments (5)

packages/theme/src/breadcrumb/index.less (2)

35-36: Dark Theme Color Applied to Last Breadcrumb Text

The added property color: var(--tv-Breadcrumb-last-text-color); within the last breadcrumb item's inner block ensures that the final breadcrumb text reflects the dark theme styling. This change is straightforward and aligns with the design update.

---

37-40: Consistent Dark Theme Styling for Last Breadcrumb Link

Within the same block, the anchor element now also utilizes color: var(--tv-Breadcrumb-last-text-color);. This ensures consistency between the text and its corresponding link for the last breadcrumb item.

packages/theme/src/breadcrumb/vars.less (3)

19-19: Updated Breadcrumb Text Color Variable

The property --tv-Breadcrumb-text-color has been updated to var(--tv-color-text-control). This change better aligns the breadcrumb text with dark theme requirements. Be sure that this color adjustment is consistent with the overall theme palette used in the project.

---

21-21: New Variable for Last Breadcrumb Text Color

A new variable, --tv-Breadcrumb-last-text-color, has been introduced and set to var(--tv-color-text-active-3). This enables distinct styling for the last breadcrumb item under the dark theme, which improves visual hierarchy.

---

23-23: Separator Icon Color Updated for Enhanced Theming

The update of --tv-Breadcrumb-separator-icon-color to var(--tv-color-text-placeholder) ensures that the separator icon now better fits within the dark theme context. Verify that this placeholder color provides sufficient contrast in all usage scenarios.

---

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[petercat-assistant]

Walkthrough

This pull request introduces a dark theme to the breadcrumb component in the Tiny Vue library. The changes involve updating the color variables to support the dark theme and modifying the breadcrumb styles to apply these new color variables.

Changes

File	Summary
packages/theme/src/breadcrumb/index.less	Added new color variables for breadcrumb text and links to support dark theme.
packages/theme/src/breadcrumb/vars.less	Updated color variables for text and separator icons to align with the dark theme. Introduced new variables for selected text color.

[petercat-assistant]

Ensure that the new color variable --tv-Breadcrumb-last-text-color is defined in the theme configuration to avoid potential issues with undefined variables.

[petercat-assistant]

Ensure that the new color variable --tv-Breadcrumb-last-text-color is defined in the theme configuration to avoid potential issues with undefined variables.