Segmented Button not showing state if disabled

[trilodge]

Describe the bug A segmented button doesn't show its state if u either set it to disabled via attribute or set it to disabled via "is-disabled" class attribute.

Is this issue related to a specific component?

Segmented Button - https://sap.github.io/fundamental-styles/?path=/docs/components-button--primary#segmented-button

What version of the Fundamental Library Styles are you using?

0.18.0

What front-end framework are you implementing in, e.g., Angular, React, etc.?

Fundamental Styles + vue.js (w/o vue fundamentals because of outdated components)

To Reproduce Steps to reproduce the behavior:

1. set disabled attribute to button within segmented button
2. set "is-disabled" class attribute to button within segmented button
3. button loses its selected state

Expected behavior The button still shows its selected or not selected state regardless of disabled or not.

Screenshots

Desktop (please complete the following information):

• OS: MacOS
• Browser: Chrome
• Version: latest

Additional context The combination of "is-selected" and "is-disabled" or "disabled" is not represented in the CSS.

[droshev]

actually the problem is that we don't provide styling for selected disabled button:

<button class="fd-button fd-button--positive is-selected" disabled>Selected State</button>

this has to have the selected color/background

[platon-rov]

not reproducible, fixed