[LyX/master] Add forgotten enum value

[Juergen Spitzmueller]

commit 5cbb95bb7f21235421735ef64a37f8a927a2a953
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sun May 10 10:14:39 2026 +0200

    Add forgotten enum value
---
 src/frontends/qt/ColorCache.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/frontends/qt/ColorCache.cpp b/src/frontends/qt/ColorCache.cpp
index ff31df7dcb..bdf4ab1d8b 100644
--- a/src/frontends/qt/ColorCache.cpp
+++ b/src/frontends/qt/ColorCache.cpp
@@ -36,6 +36,7 @@ QPalette::ColorRole role(ColorCode col)
 		break;
 
 	case Color_foreground:
+	case Color_foreground_inverted:
 	case Color_cursor:
 	case Color_preview:
 	case Color_tabularline: