microphone indicator changes opacity with volume level

app/lib/components/ParticipantList/ListPeer.jsx

@@ -67,6 +67,8 @@ const ListPeer = (props) =>
 						off      : !micEnabled,
 						disabled : peer.peerAudioInProgress
 					})}
+					style={{ opacity : micEnabled && micConsumer ? (micConsumer.volume/10)
+						+ 0.2 :1 }}
 					onClick={(e) =>
 					{
 						e.stopPropagation();

app/package-lock.json

@@ -4771,7 +4771,8 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
@@ -4782,7 +4783,8 @@
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4899,7 +4901,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4911,6 +4914,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4940,6 +4944,7 @@
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -4958,6 +4963,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -5058,6 +5064,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -5179,6 +5186,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -5602,7 +5610,6 @@
                   "version": "1.1.11",
                   "bundled": true,
                   "dev": true,
-                  "optional": true,
                   "requires": {
                     "balanced-match": "^1.0.0",
                     "concat-map": "0.0.1"
@@ -5745,8 +5752,7 @@
                 "inherits": {
                   "version": "2.0.3",
                   "bundled": true,
-                  "dev": true,
-                  "optional": true
+                  "dev": true
                 },
                 "ini": {
                   "version": "1.3.5",
@@ -5772,7 +5778,6 @@
                   "version": "3.0.4",
                   "bundled": true,
                   "dev": true,
-                  "optional": true,
                   "requires": {
                     "brace-expansion": "^1.1.7"
                   }