Fix Theme/Plugin File Editor sidebar legibility in dark mode (v1.13)

Core sets an explicit light background on the shared #templateside > ul
file-tree component, which nothing in native-dark.css covered - combined
with this file's dark-surface text colors, that produced light text on
a light background rather than just unstyled.

readme.txt

@@ -4,7 +4,7 @@ Tags: admin, dashboard, admin theme, dark mode, admin redesign
 Requires at least: 5.5
 Tested up to: 7.0
 Requires PHP: 7.4
-Stable tag: 1.12
+Stable tag: 1.13
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html
 
@@ -86,6 +86,9 @@ Use the "Report a Bug" item in the Aurora sidebar menu, or open a thread in this
 
 == Changelog ==
 
+= 1.13 =
+* Fixed the Theme File Editor and Plugin File Editor rendering their file-tree sidebar as nearly unreadable light-on-light text in dark mode. Visual-only fix; direct file editing is still entirely native WordPress functionality (Aurora doesn't add a custom editor here, matching the same "frame native content" approach used for Site Health and Updates).
+
 = 1.12 =
 * Added a "Disable Gutenberg" toggle (Settings > Screens > Editor): switches all post types to WordPress's classic editor instead of the block editor, using the same core-supported filter the official Classic Editor plugin uses. Off by default.