fix splash themeing

src/renderer/components/screenSharePicker.css

@@ -151,11 +151,4 @@
     >section {
         flex: 1;
     }
-}
-
-.vcd-screen-picker-hint-description {
-    color: var(--header-secondary);
-    font-size: 14px;
-    line-height: 20px;
-    font-weight: 400;
 }

src/renderer/themedSplash.ts

@@ -60,7 +60,7 @@ const updateSplashColors = () => {
     const bodyStyles = document.body.computedStyleMap();
 
     const color = bodyStyles.get("--text-default");
-    const backgroundColor = bodyStyles.get("--background-primary");
+    const backgroundColor = bodyStyles.get("--background-base-lowest");
 
     if (isValidColor(color)) {
         Settings.store.splashColor = resolveColor(color[0]);