diff --git a/README.md b/README.md
index b19f2cc..8f3511f 100644
--- a/README.md
+++ b/README.md
@@ -37,5 +37,6 @@ Using Dark Reader web browser extension:
 - [x] ~~When you overscroll, still see green color~~ (added `THEME_COLOR_META_TAG` to app.ini)
 - [x] ~~With Dark Reader, not the entire page is the same color~~ (replaced `body{}` with `.full.height{}` in theme-red.css)
 - [x] Directories sometimes turn blue (~~testing a fix~~ because of Dark Reader ~~and you cleared your browser history~~, just refresh browser page)
+- [x] Tooltips sometimes display white down arrow (because of Dark Reader, use filter mode)
 
 Theme coded with ♥ in VSCodium
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