[baobab] css: Make tooltip font in ringschart readable again

[Stefano Facchini <sfacchini src gnome org>]

commit 6443af1de00afb19f6511b8a7afda8d712ca57e0
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Fri Feb 13 10:24:30 2015 +0100

    css: Make tooltip font in ringschart readable again
    
    Make it white as in regular Adwaita tooltip.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740489

 src/baobab.css |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/baobab.css b/src/baobab.css
index 02b112c..ac8e62f 100644
--- a/src/baobab.css
+++ b/src/baobab.css
@@ -70,6 +70,7 @@ BaobabRingschart {
 }
 
 BaobabRingschart.subfolder-tip {
+    color: white;
     background-color: rgba(0, 0, 0, 0.8);
     padding: 3px 3px 3px 3px;
 }