kit/src/main/resources/com/oracle/javafx/scenebuilder/kit/css/ThemeDark.css [1245:1282]:
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    -fx-min-width: 15;
    -fx-max-width: 15;
    -fx-min-height: 15;
    -fx-max-height: 15;
}

.theme-presets.SBKIT-css-panel .toggle-button {
    -fx-background-color: -sb-sharp-edge-lo, -sb-sharp-edge-hi, -sb-flat;
    -fx-background-insets: 0, 0 0 1 0, 1 0 1 0;
    -fx-background-radius: 0;
    -fx-min-width: 25;
    -fx-min-height: 25;
}
.theme-presets.SBKIT-css-panel .toggle-button:selected {
    -fx-background-color: 
        derive(-sb-sharp-edge-lo, -25%), 
        derive(-sb-sharp-edge-lo, -10%), 
        linear-gradient(to bottom, derive(-sb-flat, -20% ) 0%, derive(-sb-flat, -12% ) 20%);
    -fx-background-insets: -1 0 0 0, 0, 0 1 1 1;
}
.theme-presets.SBKIT-css-panel .toggle-button:focused {
    -fx-background-color: 
        -fx-focus-color, 
        linear-gradient(to bottom, derive(-sb-flat, -20% ) 0%, derive(-sb-flat, -12% ) 20%);
    -fx-background-insets: -1 0 0 0, 0 1 1 1;
}
.theme-presets.SBKIT-css-panel .css-toggle-left {
    -fx-background-insets: 0, 0 0 1 1, 1 0 1 1;
}

/*******************************************************************************
 * CSS Panel - Stylelable Path                                                 *
 ******************************************************************************/

.theme-presets.SBKIT-css-panel .styleable-path {
    -fx-background-color: -sb-sharp-edge-lo, -sb-sharp-edge-hi, -sb-flat;
    -fx-background-insets: -1 0 0 0, 0 0 1 0, 1 0 1 0;
}
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kit/src/main/resources/com/oracle/javafx/scenebuilder/kit/css/ThemeDefault.css [1142:1179]:
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    -fx-min-width: 15;
    -fx-max-width: 15;
    -fx-min-height: 15;
    -fx-max-height: 15;
}

.theme-presets.SBKIT-css-panel .toggle-button {
    -fx-background-color: -sb-sharp-edge-lo, -sb-sharp-edge-hi, -sb-flat;
    -fx-background-insets: 0, 0 0 1 0, 1 0 1 0;
    -fx-background-radius: 0;
    -fx-min-width: 25;
    -fx-min-height: 25;
}
.theme-presets.SBKIT-css-panel .toggle-button:selected {
    -fx-background-color: 
        derive(-sb-sharp-edge-lo, -25%), 
        derive(-sb-sharp-edge-lo, -10%), 
        linear-gradient(to bottom, derive(-sb-flat, -20% ) 0%, derive(-sb-flat, -12% ) 20%);
    -fx-background-insets: -1 0 0 0, 0, 0 1 1 1;
}
.theme-presets.SBKIT-css-panel .toggle-button:focused {
    -fx-background-color: 
        -fx-focus-color, 
        linear-gradient(to bottom, derive(-sb-flat, -20% ) 0%, derive(-sb-flat, -12% ) 20%);
    -fx-background-insets: -1 0 0 0, 0 1 1 1;
}
.theme-presets.SBKIT-css-panel .css-toggle-left {
    -fx-background-insets: 0, 0 0 1 1, 1 0 1 1;
}

/*******************************************************************************
 * CSS Panel - Stylelable Path                                                 *
 ******************************************************************************/

.theme-presets.SBKIT-css-panel .styleable-path {
    -fx-background-color: -sb-sharp-edge-lo, -sb-sharp-edge-hi, -sb-flat;
    -fx-background-insets: -1 0 0 0, 0 0 1 0, 1 0 1 0;
}
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