pad: Use `null` as default for `userName`, `userColor` options

These options are used as strings, so it doesn't make sense to default
them to a boolean value.

Note that this change has no effect due to a bug in how pad options
are processed; that bug will be fixed in a future commit.

doc/docker.md

@@ -116,8 +116,8 @@ If your database needs additional settings, you will have to use a personalized
 | `PAD_OPTIONS_SHOW_CHAT`          |             | `true`  |
 | `PAD_OPTIONS_SHOW_LINE_NUMBERS`  |             | `true`  |
 | `PAD_OPTIONS_USE_MONOSPACE_FONT` |             | `false` |
-| `PAD_OPTIONS_USER_NAME`          |             | `false` |
-| `PAD_OPTIONS_USER_COLOR`         |             | `false` |
+| `PAD_OPTIONS_USER_NAME`          |             | `null`  |
+| `PAD_OPTIONS_USER_COLOR`         |             | `null`  |
 | `PAD_OPTIONS_RTL`                |             | `false` |
 | `PAD_OPTIONS_ALWAYS_SHOW_CHAT`   |             | `false` |
 | `PAD_OPTIONS_CHAT_AND_USERS`     |             | `false` |

settings.json.docker

@@ -234,8 +234,8 @@
     "showChat":         "${PAD_OPTIONS_SHOW_CHAT:true}",
     "showLineNumbers":  "${PAD_OPTIONS_SHOW_LINE_NUMBERS:true}",
     "useMonospaceFont": "${PAD_OPTIONS_USE_MONOSPACE_FONT:false}",
-    "userName":         "${PAD_OPTIONS_USER_NAME:false}",
-    "userColor":        "${PAD_OPTIONS_USER_COLOR:false}",
+    "userName":         "${PAD_OPTIONS_USER_NAME:null}",
+    "userColor":        "${PAD_OPTIONS_USER_COLOR:null}",
     "rtl":              "${PAD_OPTIONS_RTL:false}",
     "alwaysShowChat":   "${PAD_OPTIONS_ALWAYS_SHOW_CHAT:false}",
     "chatAndUsers":     "${PAD_OPTIONS_CHAT_AND_USERS:false}",

settings.json.template

@@ -235,8 +235,8 @@
     "showChat":         true,
     "showLineNumbers":  true,
     "useMonospaceFont": false,
-    "userName":         false,
-    "userColor":        false,
+    "userName":         null,
+    "userColor":        null,
     "rtl":              false,
     "alwaysShowChat":   false,
     "chatAndUsers":     false,

src/node/utils/Settings.js

@@ -165,8 +165,8 @@ exports.padOptions = {
   showChat: true,
   showLineNumbers: true,
   useMonospaceFont: false,
-  userName: false,
-  userColor: false,
+  userName: null,
+  userColor: null,
   rtl: false,
   alwaysShowChat: false,
   chatAndUsers: false,