I had some problems, but I was able to fix it! (I couldn't see the close button, as well the moveable title bar.
In ColorAnalyzerDialog.lua:
function ColorAnalyzerDialog:Show(wait)
self.dialog:show{wait = wait};
-- Don't display the dialog in the center of the screen, It covers the image
local bounds = self.dialog.bounds;
bounds.x = bounds.x / 2;
-- Added this line, so now I can close it!
bounds.y = bounds.y / 2;
self.dialog.bounds = bounds;
end
Might just got an idea, for a extension...