Comment 5 for bug 1056488

Sam, unfortunately your icons have much the same problem as the existing ones: they're indistinct against the background. Particularly with indicator-messages-available-new.svg, indicator-messages-invisible.svg, indicator-messages-invisible-new.svg, and indicator-messages-invisible-mixed.svg.

This is not a hard problem. It is not necessary to change the shape or the symbols. Just have enough contrast inside each icon that its outline is clear against blue, black, and silver.