Unreleased bugfix v2.6.1 with Stable Tag 2.6.0.

Needed to share in a Forum topic where the problem came up incidentally.
Must also be shared in the Forum topic of the related bug report.
This also contains an escapement reversal (without known incidence on the plugin’s behavior).

= 2.6.1 =
- Bugfix: Tooltips: Styling: Font color: set to black for maximum contrast with respect to white default background, thanks to 4msc bug report.
- Bugfix: Tooltips: Styling: Background color: set default value back to white because empty doesn’t work out as expected.

= Branches =
Delete the staging branch.
Rationale:

- It is outdated an cannot be used for staging any more.
- It had been made improperly on its own instead of copying from trunk/.
- It is undue for the following reasons:
  - Staging release processes here is too dangerous.
  - Staging release processes here is too little effective.

Staging must not take place in this repository but in another SVN instance.

git-svn-id: https://plugins.svn.wordpress.org/footnotes/trunk@2504324 b8457f37-d9ea-0310-8a92-e5e31aec5664

class/dashboard/subpage-main.php

@@ -170,6 +170,7 @@ class MCI_Footnotes_Layout_Settings extends MCI_Footnotes_Layout_Engine {
 	 * Displays the AMP compatibility mode option.
 	 *
 	 * @since 2.5.11 (draft)
+	 * @since 2.6.0  (release)
 	 */
 	public function amp_compat() {
 
@@ -1084,21 +1085,21 @@ class MCI_Footnotes_Layout_Settings extends MCI_Footnotes_Layout_Engine {
 	 * Displays all settings for the backlink symbol.
 	 *
 	 * @since 1.5.0
-	 * 
+	 *
 	 * - Update: **symbol for backlinks** removed; hyperlink moved to the reference number.
-	 * 
+	 *
 	 * @since 2.0.0
 	 * The former 'hyperlink arrow' is incompatible with combined identical footnotes.
 	 *
 	 * - Update: Reference container: clarify backlink semantics by prepended transitional up arrow, thanks to @mmallett issue report.
-	 * 
+	 *
 	 * @since 2.0.3
-	 * 
+	 *
 	 * - Update: Restore arrow settings to customize or disable the now prepended arrow symbol, thanks to @mmallett issue report.
-	 * 
+	 *
 	 * @since 2.0.4
 	 * @date 2020-11-02T2115+0100
-	 * 
+	 *
 	 * @reporter @mmallett
 	 * @link https://wordpress.org/support/topic/mouse-over-broken/#post-13593037
 	 *
@@ -1345,7 +1346,7 @@ class MCI_Footnotes_Layout_Settings extends MCI_Footnotes_Layout_Engine {
 				'example-string' => '<br/>' . __( 'will be displayed as:', 'footnotes' ),
 				'example'        => $g_obj_mci_footnotes->a_obj_task->exec( $l_str_example, true ),
 				// Translators: 1: <a>; 2: </a>.
-				'information'    => sprintf( __( 'For further information please check out our %1$ssupport forum%2$s on WordPress.org.', 'footnotes' ), '<a href="http://wordpress.org/support/plugin/footnotes" target="_blank" class="footnote_plugin">', '</a>' ),
+				'information'    => sprintf( __( 'For further information please check out our %1$ssupport forum%2$s on WordPress.org.', 'footnotes' ), '<a href="https://wordpress.org/support/plugin/footnotes" target="_blank" class="footnote_plugin">', '</a>' ),
 			)
 		);
 		// Call wp_head function to get the Styling of the mouse-over box.