/collection/{slug}: unreadable tooltip in chart

[php-coder]

Browser: Firefox 45

[php-coder]

Probably, we could use tooltip option to set the font color. More details: https://developers.google.com/chart/interactive/docs/gallery/piechart#configuration-options

[php-coder]

Unfortunately, I couldn't configure tooltip and decided to use CSS for that.

[php-coder]

I've just found that it's broken on MacOS X 10.9.5 (Safari/Yandex Browser):

[php-coder]

Related question in the Google Groups: https://groups.google.com/forum/#!topic/google-visualization-api/VfmF2Fvu2vU

[php-coder]

I've asked about this on StackOverflow also: http://stackoverflow.com/questions/36846616/piechart-how-to-properly-fix-unreadable-tooltip