🎨 Palette: Enhance STOP button with accessible tooltip and description

[manupawickramasinghe]

💡 What: Added contentDescription and tooltipText to the buttonKill (STOP button) in fragment_camera.xml. Also registered a new string resource (stop_button_desc = "Stop camera server") in strings.xml.
🎯 Why: The previous "STOP" label was brief and didn't convey the full context of the destructive action (stopping the stream and exiting).
📸 Before/After: N/A (visuals didn't change layout-wise, but hover and screen reader text updated).
♿ Accessibility: Sighted keyboard/mouse users now see a descriptive tooltip, and screen readers will announce a much clearer action context.

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PR created automatically by Jules for task 2181017013238381020 started by @manupawickramasinghe

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[Copilot]

Pull request overview

Improves accessibility for the Camera fragment’s STOP button by adding a clearer tooltip and screen-reader description.

Changes:

• Added a new string resource (stop_button_desc) for a more descriptive STOP action label.
• Updated buttonKill in fragment_camera.xml to include android:contentDescription and android:tooltipText.
• Documented the accessibility learning in .Jules/palette.md.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
app/src/main/res/values/strings.xml	Adds a new string intended for STOP button accessibility/tooltip text.
app/src/main/res/layout/fragment_camera.xml	Applies the new string to STOP button contentDescription and tooltipText.
.Jules/palette.md	Records the rationale/pattern for adding accessible tooltips/descriptions to destructive actions.

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[Copilot]

stop_button_desc is used for the STOP button’s accessibility label/tooltip, but its text (“Stop camera server”) doesn’t reflect the actual user-visible consequence described in stop_confirmation_message (stops the stream and closes the application). This can mislead screen reader/tooltip users; consider aligning this string with the confirmation message (or reusing a shared string) so the tooltip/description matches the real action.

Suggested change

	<string name="stop_button_desc">Stop camera server</string>
	<string name="stop_button_desc">Stop camera stream and close application</string>

[Copilot]

This palette entry describes the STOP action as “stopping the stream AND exiting the server”, but the in-app confirmation text says it will “close the application.” Consider updating the wording here to match the actual behavior to avoid documenting an incorrect outcome.

Suggested change

	**Learning:** Action buttons like "STOP" with brief labels may not convey their full impact (e.g., stopping the stream AND exiting the server) to all users, particularly those relying on screen readers or keyboard navigation.
	**Learning:** Action buttons like "STOP" with brief labels may not convey their full impact (e.g., stopping the stream and closing the application) to all users, particularly those relying on screen readers or keyboard navigation.