afx-app-window[data-id="graph_editor_win"] div[data-id="preview"] { display: flex; align-items: center; justify-content: center; background-color: white; } afx-app-window[data-id="graph_editor_win"] afx-button button { border-radius: 0; padding-top:2px; padding-bottom: 2px; } afx-app-window[data-id="graph_editor_win"] afx-resizer{ background-color: transparent; } afx-app-window[data-id="graph_editor_win"] div[data-id="btn-container"]{ background-color: transparent; position: absolute; bottom:10px; right: 10px; display: inline; }