Is there a way to make the Show/Hide columns button in the TreeTableView bigger?
Experiment with the following CSS:
.tree-table-view > .column-header-background > .show-hide-columns-button {
-fx-font-size: 24pt ;
}
.tree-table-view > .column-header-background > .show-hide-columns-button .context-menu {
-fx-font-size: null;
}
.tree-table-view .column-header,
.tree-table-view .filler,
.tree-table-view > .column-header-background > .show-hide-columns-button,
.tree-table-view:constrained-resize .filler {
-fx-size: 3em ;
}