#197 Actually visible installer selection highlight

[Hellwing]

When you go to the installers tab and select an installer from the list, and then click somewhere in the right panel to show a different data view or choose install options, the selection indicator on the installer name becomes very pale. It's even paler than the color for invalid mods, and so when you come back to the list it's hard to see on which mod you were working. Could the selection indicator be made much more conspicuous?