Design Team/Proposals/Non gray icons

Some icons in sugar have grey fill color, and they can look a few ugly next to any other white icon. Here I add some examples of the affected activities. I'm afraid I take the screenshots in different computers and the pictures have different dimensions, I didn't have time for resize the pictures, forgive the untidiness....

Browse activity
Using only white icons, the activity would have this appereance:

Write activity
The toolbar would look like this.

Image Viewer activity
Without grey icons:

Write activity
Here I conserved some grey when it determinates the meaning of the icon.

My Graph Plotter, which had many grey icons.
With grey: In white: