it would be helpful to be able to change the background or font size/weight for each line in the viewer based on the severity level. this would make it much easier to view blocks of related messages.
I totally agree when is the feature going to be present? I have been using GamutLogViewer up to now and feel a little deprived.
We're evaluating this item as a feature for Loupe 4.0. We'll start locking in the roadmap for 4.0 after 3.8 ships.
I don't know how much you've worked on this, but I was thinking since you're using the XtraGrid, enabling the relatively new conditional formatting could be an easy to implement and powerful workaround/feature...
We're going to do something like this when we port the log grid over from Janus to DevExpress.