Only use the primary color on the icon of the active section

[AlbertoPdRF]

Is your feature request related to a problem? Please describe.

As of now, it's not clear, when looking at the navigation drawer, which section the user is in, because all icons appear colored with the primary color.

Describe the solution you'd like

I think the problem would be solved if only the icon of the active section was colored with the primary color, and all the others were left with the default one.

Describe alternatives you've considered

Leave the coloring as is and/or highlight the active section in another way.

Additional context

None.

[AlbertoPdRF]

Additional considerations: should the text also be colored with the primary color? How should we handle the icons on the navigation bar? This last question is specific for the light theme, as with the dark theme these can be handled just like the ones on the drawer. Also, which color should the drawer footer icons have?