Comment 8 for bug 995640

Simon, plain black is used as tooltip color in Greybird.

I was able to work around this issue by doing the following:

- sudo leafpad /usr/share/themes/Greybird/gtk-2.0/gtkrc
- search for the line that reads gtk_color_scheme = "tooltip_bg_color:#000000\ntooltip_fg_color:#E1E1E1" # Tooltips.
- change #000000 to some other color (I used the usual #686868 which seems to be a reasonable compromise between readability and looks)
- save
- switch to another theme and back to Greybird to apply changed settings