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-rw-r--r--src/options.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/options.c b/src/options.c
index 9fb50ff..2ce5984 100644
--- a/src/options.c
+++ b/src/options.c
@@ -987,6 +987,8 @@ show_usage(void)
" -t, --thumbnails As --index, but clicking an image will open it in\n"
" a new viewing window\n"
" --cache-thumbnails Enable thumbnail caching\n"
+" -~, --thumb-title STRING Set window title for images opened from thumbnail mode.\n"
+" Supports format specifiers, see there.\n"
" -I, --fullindex Same as index mode, but below each thumbnail you\n"
" get image name, size and dimensions\n"
" --bg-tile FILE\n"