fix(tree-menu): change the color of the dark mode icon

[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)
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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
  • Improved alignment of tree menu node names with flexbox and vertical centering.
  • Enhanced icon color consistency by updating icon fill colors on hover and selection states.
  • Introduced a new variable for customizing tree menu node icon colors.

[coderabbitai]

Walkthrough

The changes update the tree menu's styling by introducing a new CSS variable for icon fill color, applying flexbox layout to node names, and enhancing icon color behavior on hover and selection. These adjustments ensure consistent icon appearance and improved alignment within the tree menu component.

Changes

File(s)	Change Summary
packages/theme/src/tree-menu/index.less	Enhanced .tree-node-name with flex layout; updated icon (svg) color handling for hover and selection states.
packages/theme/src/tree-menu/vars.less	Added --tv-TreeMenu-node-icon-fill-color CSS variable for tree menu icon fill color.

Poem

In the forest of menus, where icons reside,
A flexy new layout lets them align with pride.
Their colors now shimmer, on hover and select,
With variables guiding the hues we expect.
A rabbit approves, with a hop and a cheer—
The tree’s looking sharp, from branch to ear! 🐇🌳

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[petercat-assistant]

Walkthrough

This pull request updates the styles for the tree menu component in dark mode. It introduces changes to the icon colors, ensuring they are consistent with the dark mode theme. The changes include setting the fill color for icons within the tree menu to enhance visual consistency.

Changes

File	Summary
packages/theme/src/tree-menu/index.less	Added CSS rules to set the fill color for SVG icons in various states, ensuring consistency in dark mode.
packages/theme/src/tree-menu/vars.less	Introduced new CSS variables for icon fill colors to support the dark mode theme.

[coderabbitai]

Actionable comments posted: 2

🔭 Outside diff range comments (1)

packages/theme/src/tree-menu/vars.less (1)

34-40: ⚠️ Potential issue

Declare hover state icon color variable
The CSS in index.less references --tv-TreeMenu-node-icon-hover-color, but this variable isn't declared here. Please add within the same block, for example:

--tv-TreeMenu-node-icon-hover-color: var(--tv-color-icon-hover, #191919);

to ensure hover styles apply correctly.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1886a5d and c49f66f.

📒 Files selected for processing (2)

• packages/theme/src/tree-menu/index.less (2 hunks)
• packages/theme/src/tree-menu/vars.less (1 hunks)

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

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

🔇 Additional comments (3)

packages/theme/src/tree-menu/vars.less (1)

34-36: Introduce default node icon fill color variable
Adding --tv-TreeMenu-node-icon-fill-color centralizes icon color theming with a sensible fallback.

packages/theme/src/tree-menu/index.less (2)

213-215: Align icons and text with flexbox
The new display: flex; align-items: center; on .tree-node-name ensures icons and labels are vertically centered.

---

226-229: Use centralized icon fill color
Applying fill: var(--tv-TreeMenu-node-icon-fill-color) ensures the default icon color is driven by your theme variable.