Two Dimensional Filter Statistics gadget columns and text are the same color on the wallboard

Summary

Header background color and text color are almost the same color so the header titles are no longer visible.

Steps to Reproduce

1. Create a dashboard with a Two Dimensional Filter Statistics gadget.
2. View this dashboard as a wallboard

Expected Results

The table heading columns will be readable.

Actual Results

The text and background colors are both very light colored so the text appears invisible.