With Java8, how can I make my tooltips behave as they did with Java7?

Question

Since some of my customers may want to run Java8, I decided to try my application with Java8. There were quite a few problems most of which were resolved when I decided to do a revamp in anticipation having to have the system run on Android and ios platforms.
I now have everything working except Tooltips.
With Java7, Tooltips were not styled and the default was satisfactory. On Java8, the Tooltips had a black background with white lettering with too small a font size. Also, since I was defining a background in .root, there was an addition rectangle to the right and below the tooltip. After much trial and error, I was able to get a satisfactory Tooltip in Java8 although I cannot see how to implement the page corner.  To remove the background rectangle (which also appeared on my ChoiceBoxes, I had to style .root.popup). Below is the relative section of my css file.
However, when I run this under Java7, I get a Tootip with a transparent background and black lettering.
Is there anyway I can get the same tooltip styling to work with both Java versions?
Thanks for the help.
Alex
    Document   : e3css
    Created on : Jul 25, 2012, 12:12:40 PM
    Author     : Admin
    Description:
        Purpose of the stylesheet follows.
.root {
    -fx-base: rgb(50,250,50) ;
    -fx-background-color: linear-gradient(to bottom, rgb(0,227,0), rgb(50,160,50));
    -fx-focus-color: green ;
    -fx-accent: green ;
    -fx-border-color: black ; 
    -fx-border-width: 2 ;
    -fx-border-style: solid ;
    -fx-border-radius: 10,10,10,10 ;
    -fx-background-radius: 10,10,10,10 ;
.root.popup {
   -fx-background-color: transparent ;
   -fx-border-color: transparent ;
.tooltip {
    -fx-background-color: gold ;
    -fx-font-family: Verdana,Arial,Helvetica,sans-serif;
    -fx-font-size: 12px;
    -fx-font-weight: bold;
    -fx-fill: white;
    -fx-background-radius: 10,10,10,10 ;
    -fx-border-color: black ; 
    -fx-border-width: 2 ;
    -fx-border-style: solid ;
    -fx-border-radius: 10,10,10,10 ;

Answer 1

See:
  styles - How can I keep the JavaFX 7 skin with JavaFX 8? - Stack Overflow
Which I replicate here:
Simply put:
setUserAgentStylesheet(STYLESHEET_CASPIAN);
...as the first line of your program (in the start() method), or run it with the JVM flag -Djavafx.userAgentStylesheetUrl=caspian.
Note the above method isn't present in JavaFX 2.x, so if you want to do this in code that compiles and runs on both Java 7 and 8, unfortunately the only way around it is via reflection.
The above demonstrates how to keep the entire look and feel of caspian (from Java 7) for Java 8.
If you want the default JavaFX 8 style (modena) for everything but tooltips, you can probably just copy and paste the tooltip styling css from caspian.css and put it in your application stylesheet (though I have not tried that so I'm not 100% sure it will work correctly for you).  You can find modena.css and caspian.css in the JavaFX sources: java - Where to get the JavaFX sources? - Stack Overflow.  For example caspian.css is here and it's tooltip styling code is copy and pasted below:
.tooltip {
  -fx-skin: "com.sun.javafx.scene.control.skin.TooltipSkin";
  -fx-background-color:
  linear-gradient(#cec340, #a59c31),
  linear-gradient(#fefefc, #e6dd71),
  linear-gradient(#fef592, #e5d848);
  -fx-background-insets: 0,1,2;
  -fx-background-radius: 0 0 13 0;
  -fx-padding: 0.333333em 0.666667em 0.333333em 0.666667em; /* 4 8 4 8 */
  -fx-effect: dropshadow( three-pass-box , rgba(0,0,0,0.6) , 8, 0.0 , 0 , 0 );
.page-corner {
  -fx-padding: 4.5 4.5 4.5 4.5;
  -fx-background-color: linear-gradient( from 0% 0% to 50% 50%, #fcf7b6, #a59c31);
  -fx-shape: "M0,0H9L0,9Z";
  -fx-effect: dropshadow( three-pass-box , rgba(0,0,0,0.6) , 4 , 0.0 , 0 , 0 );