# Fixing background color of labels in output cell

I swear that I have asked or at least seen a similar question before, but I cannot find it.

I tend to use the Report/StandardReport stylesheet because the color difference between input and output cells is extremely convenient. However, I frequently have issues with labels in plots maintaining some of the gray background even when I place them in a Panel or a Manipulate (white background), and even when I specify white backgrounds for everything I can think of. For example:

Panel@AngularGauge[0.5, LabelStyle -> Directive[Black, Background -> White],
ScaleOrigin -> {π, 0}, Background -> White,
GaugeLabels -> "Label"]


Notice the gray at the top of Label. What am I doing wrong?

For this example, the problem is that the label is placed into the graphic using an InsetBox (probably coming from a Text object), and this InsetBox is inheriting the main background color. You can fix this by adding a BaseStyle option:
AngularGauge[