style.css

style.css

/* Add the subtle gradient to the editor background */
.monaco-editor {
background-color: transparent !important;
/* 背景顏色預設值，先註解起來留著 */
/* background-image: linear-gradient(to bottom, #2a2139 75%, #34294f); */
/* 修改成自己喜歡的背景顏色 */
background-image: linear-gradient(to bottom, hsla(209, 100%, 16%, 0.836) 50%, #003c44);
}