diff --git a/package-lock.json b/package-lock.json
index 55bdd207..cb14e476 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "nightTab",
-  "version": "4.29.0",
+  "version": "4.31.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 2a5f4273..cdcecc5c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nightTab",
-  "version": "4.29.0",
+  "version": "4.31.0",
   "description": "A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab.",
   "main": "index.js",
   "scripts": {
diff --git a/src/js/theme.js b/src/js/theme.js
index f4d5763e..b1d4c526 100644
--- a/src/js/theme.js
+++ b/src/js/theme.js
@@ -139,9 +139,9 @@ var theme = (function() {
           object: state.get.current(),
           path: "theme.accent.rgb",
           newValue: {
-            r: parseInt(rgb.r, 10),
-            g: parseInt(rgb.g, 10),
-            b: parseInt(rgb.b, 10)
+            r: Math.round(rgb.r),
+            g: Math.round(rgb.g),
+            b: Math.round(rgb.b)
           }
         });
       };
@@ -155,9 +155,9 @@ var theme = (function() {
         object: state.get.current(),
         path: "theme.color.hsl",
         newValue: {
-          h: parseInt(hsl.h, 10),
-          s: parseInt(hsl.s, 10),
-          l: parseInt(hsl.l, 10)
+          h: Math.round(hsl.h),
+          s: Math.round(hsl.s),
+          l: Math.round(hsl.l)
         }
       });
     },
@@ -167,9 +167,9 @@ var theme = (function() {
         object: state.get.current(),
         path: "theme.color.rgb",
         newValue: {
-          r: parseInt(rgb.r, 10),
-          g: parseInt(rgb.g, 10),
-          b: parseInt(rgb.b, 10)
+          r: Math.round(rgb.r),
+          g: Math.round(rgb.g),
+          b: Math.round(rgb.b)
         }
       });
     }
@@ -1381,7 +1381,7 @@ var theme = (function() {
           } else if (rgb[key] > 255) {
             rgb[key] = 255;
           };
-          rgb[key] = parseInt(rgb[key], 10);
+          rgb[key] = Math.round(rgb[key]);
         };
         if (index < 10) {
           index = "0" + index;
@@ -1550,7 +1550,7 @@ var theme = (function() {
           } else if (rgb[colorKey] > 255) {
             rgb[colorKey] = 255;
           };
-          rgb[colorKey] = parseInt(rgb[colorKey], 10);
+          rgb[colorKey] = Math.round(rgb[colorKey]);
         };
         var themePresetBackground = helper.node("span|class:theme-preset-background-0" + i);
         themePresetBackground.style.setProperty("background-color", "rgb(" + rgb.r + ", " + rgb.g + ", " + rgb.b + ")");
@@ -1633,7 +1633,7 @@ var theme = (function() {
               } else if (rgb[colorKey] > 255) {
                 rgb[colorKey] = 255;
               };
-              rgb[colorKey] = parseInt(rgb[colorKey], 10);
+              rgb[colorKey] = Math.round(rgb[colorKey]);
             };
             var themeCustomBackground = helper.node("span|class:theme-custom-background-0" + i);
             themeCustomBackground.style.setProperty("background-color", "rgb(" + rgb.r + ", " + rgb.g + ", " + rgb.b + ")");
diff --git a/src/js/version.js b/src/js/version.js
index 55caaee6..3365d32f 100644
--- a/src/js/version.js
+++ b/src/js/version.js
@@ -1,6 +1,6 @@
 var version = (function() {
 
-  var current = "4.29.0";
+  var current = "4.31.0";
 
   var name = "Naughty Goose";
 
diff --git a/src/manifest.json b/src/manifest.json
index 02c987e5..fe5fde17 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -2,7 +2,7 @@
   "name": "nightTab",
   "short_name": "nightTab",
   "description": "A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks in nightTab.",
-  "version": "4.29.0",
+  "version": "4.31.0",
   "manifest_version": 2,
   "chrome_url_overrides": {
     "newtab": "index.html"