Comment 3 for bug 1236267

I don't want to hardcode width values into specific indicators. This will become difficult to maintain later on.
For labels: I can round up the widths to the closest gu. If the "10:00" string takes between 3-4gu, then it will be 4gu.
For icons: We need icons of correct aspect to do custom widths. If you want a 3gu icon in the panel (3gu high), then they must be 1:1 aspect including padding. If you want a 2gu icon then it must be between 2:4 and 2:3 padding inclusive, etc.

Note: For svgs, the document size must be the correct aspect.
I've included an example of the bluetooth icon we need to accomplish this.