you probably already know this, but you could replace your windows shortcut icon with available game icons. here's where you can get game icons:
there's 3800+ to choose from. just right-click your server exe shortcut, choose 'Properties', click 'Change Icon' and browse your pc. my current icon for my server shortcut is puckman.ico
yet, i know what you mean. it would be a nice enhancement to have an official kaillera icon.