Customize Native Child Theme in Ojs 3 Menu Hamburger

Dear All or @NateWr

In my case with Mobile Version (using smartphone) background and font color is the same. white. so its to hard (Hamburger Menu) like this screenshot.
image

how to fix it? i saw the others journal is good like this

image

Please Help

Thank you

This was fixed in this issue and the fix will be available in the next stable release (3.2.1-2), which we plan to release soon.