Jbaker/refactor icon sizing

[jason-capsule42]

Alaska Airlines Pull Request

Type of change:

Please delete options that are not relevant.

• New capability
• Revision of an existing capability
• Infrastructure change (automation, etc.)
• Other (please elaborate)

Checklist:

• My update follows the CONTRIBUTING guidelines of this project
• I have performed a self-review of my own update

By submitting this Pull Request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Pull Requests will be evaluated by their quality of update and whether it is consistent with the goals and values of this project. Any submission is to be considered a conversation between the submitter and the maintainers of this project and may require changes to your submission.

Thank you for your submission!

-- Auro Design System Team

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR refactors the icon sizing implementation in the auro-icon component, replacing the customSize attribute with a CSS custom property approach. The changes improve the component's flexibility and maintainability by using CSS variables for size control instead of relying on attribute-based styling.

Class diagram for auro-icon component changes

classDiagram
    class AuroIcon {
        - customSize: Boolean
        + --ds-auro-icon-size: CSSVariable
        category: String
        name: String
        customColor: Boolean
    }
    note for AuroIcon "Replaced customSize attribute with --ds-auro-icon-size CSS variable"

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File-Level Changes

Change	Details	Files
Replaced customSize attribute with CSS custom property for icon sizing	Removed customSize boolean attribute from component definition Added --ds-auro-icon-size CSS custom property with default value of --ds-size-300 Updated component to use CSS custom property for width and height Removed attribute-based size styling in favor of direct size control	src/auro-icon.js src/style.scss src/tokens.scss
Updated documentation to reflect new sizing implementation	Updated custom size usage examples with new CSS custom property approach Revised documentation to explain the new sizing mechanism Reorganized theme support section for better readability	demo/api.md docs/partials/api.md apiExamples/customSize.html
Enhanced SVG element styling	Added explicit width and height styling for SVG elements Ensured square aspect ratio preservation for icons	src/style.scss

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[sourcery-ai]

Hey @jason-capsule42 - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[rmenner]

This looks great. I think I am starting to understand how our theming works.

[jordanjones243]

Need to run build to update API docs