Not so long ago I made a humble request to make the detected UFO markers more discernible, changing color and perhaps line width, as both grey line opf the marker and green UFO craft tend to blend in with the environment and are hard to see, particularly with the clutter of radar and SAM range outlines.
Apparently I shouldn't've done that, for in the latest build by oldie (the one with maps rebuilt for WIN) the detection marker is even worse
http://s48.radikal.ru/i122/0903/4a/7cbd266a39bb.jpgAt first detection, when timer pauses, it looks like on the above screenshot, with a thin grey line heading into nothingness. Neither the circle around UFO nor the UFO itself are visible at first. If you click the UFO, the yellow selection circle does appear, the UFO sprite does not, though. Finally, if you unpause the game, in a brief time the UFO sprite and the circle around it both appear.
Another humble supplication is that the SAM range outlines could be made visible just like the radar ranges on the map (toggled by a button on the geoscape control panel).