兼容url格式的主题背景图片

src/main/utils/index.ts

@@ -1,4 +1,4 @@
-import { throttle } from '@common/utils'
+import { isUrl, throttle } from '@common/utils'
 import migrateSetting from '@common/utils/migrateSetting'
 import getStore from '@main/utils/store'
 import { STORE_NAMES, URL_SCHEME_RXP } from '@common/constants'
@@ -247,7 +247,10 @@ export const getTheme = () => {
     if (theme) {
       if (theme.config.extInfo['--background-image'] != 'none') {
         theme = copyTheme(theme)
-        theme.config.extInfo['--background-image'] = `url(file:///${joinPath(global.lxDataPath, 'theme_images', theme.config.extInfo['--background-image']).replaceAll('\\', '/')})`
+        theme.config.extInfo['--background-image'] =
+          isUrl(theme.config.extInfo['--background-image'])
+            ? `url(${theme.config.extInfo['--background-image']})`
+            : `url(file:///${joinPath(global.lxDataPath, 'theme_images', theme.config.extInfo['--background-image']).replaceAll('\\', '/')})`
       }
     } else {
       themeId = global.lx.appSetting['theme.id'] == 'auto' && shouldUseDarkColors ? 'black' : 'green'