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JavaFX ListView - remove spacing / padding / margin between cells

As I have custom cells for a particular ListView, I have big trouble to understand how to to remove the "natural" sort of margin / spacing there is between each cells, and, even worse, on the right and left sides of said cells.
Here's an example:
]1
As you can see, I use a color to bring out each cell. You cannot see the space at the end of the cells (on their right side), because I need to scroll, but you can trust me, the white space is equal on each side (bigger on the left & right, though...) which is not normal as I have specifically designed these cells so that their width is as large as the ListView so that there is no need to use horizontal scrolling. My issue kinds of defeat my purpouse...
Each cell consists of one AnchorPane with the image and the one label.
The AnchorPane is painted in yellow (-fx-background-color: yellow;).
And as you can clearly see, there is these white spaces all around the cells.
FYI, here I am using JavaFX 8 / 2.2 SDK but I intend to use JFoenix JFXListView & JFXListCell. However, the spacing is even worse using those.
Strange point: I also painted the ListViewin green, but such color is nowhere. to be seen. I guess all the cells (and the empty one) overwrites the ListView content, so it would make sense not to see its background. However, this means the cells are somehow "corrupted" since white spaces are "added" all around my cells.
I have tried to set padding to 0 for everything but in vain.
Finally, in the onUpdateItem method, I do call the super method and when the cell is not flagged as empty, I set the graphic to the aforementioned AnchorPane otherwise I set it to null, which is clearly consistent to my screenshot.
Thanks for the help !

If you look at the default CSS stylesheet for JavaFX, modena.css, you'll see:
.list-cell {
-fx-padding: 0.25em 0.583em 0.25em 0.583em; /* 3 7 3 7 */
}
This is where the padding for the ListCells is coming from. To remove this padding simply add your own stylesheet which contains:
.list-cell {
-fx-padding: 0px;
}
Or call setStyle for each of your ListCells:
setStyle("-fx-padding: 0px;");
The second option would best be done by using a custom cell factory.
listView.setCellFactory(v -> new ListCell<>() {
{
setStyle("-fx-padding: 0px");
}
#Override
protected void updateItem(Object item, boolean empty) {
super.updateItem(item, empty);
if (empty || item == null) {
setText(null);
setGraphic(null);
} else {
// your custom display logic
}
}
});
Also, after some quick testing with JFoenix it looks like using the above will also work for JFXListCell; though you have to be careful about overriding updateItem because JFXListCell does a lot in its implementation.

I set the red background of the cell as default to make sure that the artifacts I see between cells are in fact created by the .list-cell.
No matter how hard I tried, I could not get rid of it, even with the padding 0px. The red background was still visible every other cell in my case.
I suppose, it is a rounding error...
So, the only thing that worked was using a negative padding to remove any spacing | padding | margin between cells.
.list-cell{
-fx-font-weight: normal;
-fx-text-fill: white;
-fx-padding: -1px;
-fx-background-color: red;
}

JavaFX: How to increase text size without increasing container (Label, Button) size?

I would like to simply have the text inside a Button to fill more of the Button or increase the font size in a button without increasing its size.
I tried using negative padding but it does not give the desired result.

You can simply remove the padding using the -fx-padding property:
.button {
-fx-padding: 0;
-fx-font-size: 20;
}

JavaFX, JFoenix - Button corners are colored, even with rounded corners

I have a JFXButton with a white background (instead of the "grey" default one), a transparent border and rounded corners. This is my style attribute :
-fx-border-color: rgba(0,0,0,0.25);
-fx-border-radius: 10;
-fx-background-color: #ffffff;
But this is actually what I get :
As you can see, the corners are colored and I don't want that. Is this a bug from JFoenix or am I doing something wrong ?

You can also apply a radius for the background property, which will let you have rounded corners without any background colour spill.
.jfx-button{
-fx-border-radius: 15pt;
-fx-background-radius: 15pt;
}

Is there a bug in JavaFX TableView?

I am currently using a JavaFX TableViewin an application and experiencing the following strange behaviour:
The resize policy is set to CONSTRAINED_RESIZE_POLICY, and when I start the application, the window is not maximized. However, when I maximize the window, two things happen:
The columns do resize, but do not fill the whole space, there is still some space left on the right side.
The columns do not line up with the headings anymore.
As soon as I resize one column manually, the layout is adjusted and everything looks as expected - meaning the columns fill the whole space and line up with the headings.
This is the css I apply to the table:
.rowWithTopBorder {
-fx-background-color: #555555, -fx-background ;
-fx-background-insets: 0, 2 0 0 0;
}
.boldRow {
-fx-font-weight: bold;
}
Is there a bug or am doing something wrong?

JavaFX remove separation between toolbar and top of window

I have a JavaFX app that atm is just a BorderPane with a ToolBar at the top. It looks like this:
I was wondering whether there was a way to remove the line between the top of the window and the ToolBar so that it looks something like this:
I've already tried setting the ToolBar's border width and the BorderPane's border width to 0 but neither helped.

The line is toolbar's first background color that is only shown 1px above and bottom of it. Checkout -fx-background-insets below
.tool-bar:horizontal {
-fx-background: derive(-fx-base,-30%);
-fx-background-color:
linear-gradient(to bottom, derive(-fx-base,-30%), derive(-fx-base,-60%)),
linear-gradient(to bottom, derive(-fx-base,65%) 2%, derive(-fx-base,-20%) 95%);
-fx-background-insets: 0, 1 0 1 0;
-fx-background-radius: 0, 0 ;
-fx-padding: 0.416667em 0.833em 0.416667em 0.833em; /* 5 10 5 10 */
-fx-spacing: 0.333em; /* 4 */
-fx-alignment: CENTER_LEFT;
}
To remove the top line, change the inset to:
-fx-background-insets: 0, 0 0 1 0;
To tweak default looks of JavaFX control's, I suggest to take a look at caspian.css file.

I tried amru's answer and it removed the line from the top of the toolbar. Unfortunately, there was still a line at the bottom of the window decoration. After spending a couple of hours researching this, I found that there's currently no way to do what I wanted to in JavaFX (without embedding the JavaFX in a swing window which isn't an option for other reasons) although it's a known issue and a fix is being worked on for a future release (see here).