Fix error: chars in editor could end up without any color

src/EditorSetup.ts

@@ -67,7 +67,6 @@ export const getCodeMirrorTheme = (theme: {[key: string]: string}): Extension =>
   const toposTheme = EditorView.theme({
     "&": {
       color: background,
-        // backgroundColor: background,
       backgroundColor: "transparent",
       fontSize: "24px",
       fontFamily: "IBM Plex Mono",
@@ -76,6 +75,9 @@ export const getCodeMirrorTheme = (theme: {[key: string]: string}): Extension =>
       caretColor: cursor,
       fontFamily: "IBM Plex Mono",
     },
+    ".cm-line": {
+      color: `${brightwhite}`,
+    },
     ".cm-cursor, .cm-dropCursor": {
       borderLeftColor: cursor,
     },