Split Button - consistent divider across appearances

[ashetland]

Check existing issues

• [X] I have checked for existing issues to avoid duplicates

Description

The vertical divider in Split Button should visually match across appearance values.

Acceptance Criteria

See Figma file. outline and outline-fill are updated to match solid and transparent.

Relevant Info

cc @jcfranco

Which Component

Split Button

Example Use Case

No response

Priority impact

p4 - not time sensitive

Calcite package

• [X] @esri/calcite-components
• [ ] @esri/calcite-components-react
• [ ] @esri/calcite-design-tokens
• [ ] @esri/eslint-plugin-calcite-components

Esri team

Calcite (design)

[github-actions[bot]]

cc @geospatialem, @brittneytewks

[jcfranco]

Added visual changes label as this will tweak the outline-fill divider.

[github-actions[bot]]

Installed and assigned for verification.

[geospatialem]

In verifying in 2.9.0-next.18 it looks like if a background color is added, the same color is placed in the empty space for the revised divider: https://codepen.io/geospatialem/pen/VwOjjOX

@josercarcamo reassigning back to ya and set to in development for further investigation. 🕵🏻

[github-actions[bot]]

Installed and assigned for verification.

[geospatialem]

Verified in 2.9.0-next.21 with https://codepen.io/geospatialem/pen/VwOjjOX 🎉