🎨 Improve grade colors (#1631)

[KATO-Hiro]

close #1631

Summary by CodeRabbit

• New Features
  • Grade labels now support customizable text sizing and dynamic styling for improved visual clarity.
• Refactor
  • Simplified task grade handling by consolidating grade display logic into a dedicated component.
• Style
  • Updated the application’s color scheme for grade-related elements, ensuring a more consistent and modern look.

[coderabbitai]

Walkthrough

The pull request updates several Svelte components and supporting utilities to improve the dynamic styling of task grades. The changes add a new optional property for text size, replace legacy utility functions with new ones that adjust text and border colors based on grade, and simplify the prop passing logic. Additionally, the color palette in the Tailwind configuration has been refreshed with new hexadecimal values.

Changes

File(s)	Change Summary
src/lib/components/GradeLabel.svelte, src/lib/components/TaskGradeList.svelte, src/lib/components/TaskList.svelte	Updated grade display UI: Added defaultTextSize prop in GradeLabel; modified rendering logic to use toChangeTextColorIfNeeds and toChangeBorderColorIfNeeds; removed redundant utility calls and props, integrating GradeLabel for a more concise grade presentation.
src/lib/utils/task.ts	Renamed toWhiteTextIfNeeds to toChangeTextColorIfNeeds with an explicit return type; updated grade conditions; added toChangeBorderColorIfNeeds to handle border color logic, particularly for TaskGrade.D6.
tailwind.config.ts	Updated hexadecimal color values in the atcoder palette and defined a specific bronze color (#e38a66), revising the overall UI color scheme.

Sequence Diagram(s)

sequenceDiagram
    actor User
    participant TaskList
    participant GradeLabel
    participant Utils

    User->>TaskList: Request task list rendering
    TaskList->>GradeLabel: Instantiate with taskGrade and defaultTextSize
    GradeLabel->>Utils: Call toChangeBorderColorIfNeeds(taskGrade)
    GradeLabel->>Utils: Call toChangeTextColorIfNeeds(taskGrade)
    Utils-->>GradeLabel: Return dynamic border and text styles
    GradeLabel-->>TaskList: Render grade label with updated styling

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Assessment against linked issues

Objective	Addressed	Explanation
Improve grade color clarity (#1631)	✅

Poem

I'm a little rabbit with hops so light,
Celebrating new colors that shine so bright.
Borders and text now dance in tune,
Under a code sky and a color moon.
I nibble on changes with a joyful delight! 🐰

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📜 Recent review details

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

📥 Commits

Reviewing files that changed from the base of the PR and between 52da577 and c7a9158.

📒 Files selected for processing (5)

• src/lib/components/GradeLabel.svelte (1 hunks)
• src/lib/components/TaskGradeList.svelte (1 hunks)
• src/lib/components/TaskList.svelte (3 hunks)
• src/lib/utils/task.ts (1 hunks)
• tailwind.config.ts (2 hunks)

🔇 Additional comments (12)

tailwind.config.ts (2)

36-52: Great color palette update for different grades!

The refreshed color values for grades Q11 through D6 provide better visual distinction between different grade levels. These changes align well with the goal of improving grade colors mentioned in the PR title.

---

61-61: Good addition of bronze color value

Adding a specific hexadecimal color for bronze (#e38a66) instead of an empty string ensures consistent styling when this color is referenced elsewhere in the application.

src/lib/components/TaskList.svelte (3)

13-15: Good component refactoring approach

Removing the direct TaskGrade import and adding the GradeLabel component shows a clean separation of concerns. This change improves maintainability by encapsulating grade display logic in a dedicated component.

---

34-34: Clean property restructuring

Removing the gradeColor property from the destructuring simplifies the component's interface. This change aligns with the refactoring that shifts grade styling responsibility to the GradeLabel component.

---

52-58: Excellent component extraction

Replacing the previous div-based implementation with the GradeLabel component is a good refactoring practice. The component now handles all grade styling logic with configurable properties, making the code more maintainable and flexible.

src/lib/components/GradeLabel.svelte (4)

3-8: Good utility function imports

The updated imports, especially the new color adjustment functions toChangeTextColorIfNeeds and toChangeBorderColorIfNeeds, provide better semantics and functionality for dynamic styling based on grade values.

---

15-15: Enhanced component flexibility

Adding the optional defaultTextSize property improves the component's flexibility, allowing consumers to customize the text size based on their needs.

---

18-24: Good default value for text size

Setting 'md' as the default value for defaultTextSize ensures backward compatibility with existing usages of the component while allowing for customization when needed.

---

30-35: Improved dynamic styling

Using toChangeBorderColorIfNeeds and toChangeTextColorIfNeeds functions for dynamic styling based on grade creates a more consistent and maintainable approach to grade visualization.

src/lib/components/TaskGradeList.svelte (1)

54-54: Simplified component API

Directly passing taskGrade as the grade prop simplifies the component interface and data flow. This change aligns with the shift towards encapsulating grade display logic in the dedicated GradeLabel component.

src/lib/utils/task.ts (2)

266-282: Improved text color handling for different task grades.

The function has been renamed from toWhiteTextIfNeeds to toChangeTextColorIfNeeds, which better reflects its purpose. The D3 grade has been added to the white text list, and special handling for D6 grade has been implemented to use a bronze text color. These changes improve text contrast for different grade backgrounds.

---

284-290: Added new border color handling function for grade styles.

This new function adds consistent border styling to complement the text color changes, particularly handling the special case for D6 grade with a bronze border. This enhances the visual consistency of the grade labels.

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