Aptana Studio 3 content assist is black text on black background(unreadable)

I have tried to change this by going to preferences-> General-> Appearance-> Colors and Fonts and in the basic folder changes the Content assist foreground color to white and click apply but each time I go back it has changed back to black :( Anyone know how to fix this? The content assist is unreadable. and yes I have tried restarting aptana and reeboot开发者_高级运维ing

I fixed this by clicking the theme button and choosing a different theme.

I ran into this problem, and this question came up in a search, so thought I better put an answer up.