diff --git a/mods/onecolor.js b/mods/onecolor.js
index 2820328c..b5320f25 100644
--- a/mods/onecolor.js
+++ b/mods/onecolor.js
@@ -44,4 +44,103 @@ window.addEventListener('load', function() {
         }*/
         return color;
     }
+    pixelTempCheck = function(pixel){
+        if (pixel.del) { return }
+        var elementInfo = elements[pixel.element];
+        if (pixel.temp < absoluteZero) { // Absolute Zero
+            pixel.temp = absoluteZero;
+        }
+        // If the pixel's temp >= the elementInfo tempHigh, change pixel.element to elementInfo.stateHigh
+        if (pixel.temp >= elementInfo.tempHigh) {
+            var result = elementInfo.stateHigh;
+            if (elementInfo.extraTempHigh) {
+                for (var extraTemp in elementInfo.extraTempHigh) {
+                    if (pixel.temp >= extraTemp) {
+                        result = elementInfo.extraTempHigh[extraTemp];
+                    }
+                }
+            }
+            // If result is an array, choose a random item
+            if (Array.isArray(result)) {
+                result = result[Math.floor(Math.random() * result.length)];
+            }
+            if (result === null) {deletePixel(pixel.x,pixel.y);return false}
+            else {
+                if (elements[result].customColor) {
+                    changePixel(pixel,result,false);
+                    pixel.color = color;
+                }
+                else if (elementInfo.stateHighColor) {
+                    changePixel(pixel,result,false);
+                    pixel.color = pixelColorPick(pixel,elementInfo.stateHighColor);
+                }
+                else if (elementInfo.stateHighColorMultiplier) {
+                    var color = pixel.color;
+                    changePixel(pixel,result,false);
+                    var rgb = color.match(/\d+/g);
+                    var m = elementInfo.stateHighColorMultiplier;
+                    if (Array.isArray(m)) {
+                        m = m[0];
+                    }
+                    var r = Math.floor(rgb[0] * m);
+                    var g = Math.floor(rgb[1] * m);
+                    var b = Math.floor(rgb[2] * m);
+                    // Make sure the color is within the RGB range
+                    r = Math.max(0, Math.min(255, r));
+                    g = Math.max(0, Math.min(255, g));
+                    b = Math.max(0, Math.min(255, b));
+                    pixel.color = "rgb("+r+","+g+","+b+")";
+                }
+                else { changePixel(pixel,result,false); }
+                if (elementInfo.fireColor && result==="fire") {
+                    pixel.color = pixelColorPick(pixel,elementInfo.fireColor);
+                }
+            }
+        }
+        // If the pixel's temp <= the elementInfo tempLow, change pixel.element to elementInfo.stateLow
+        else if (pixel.temp <= elementInfo.tempLow) {
+            var result = elementInfo.stateLow;
+            if (elementInfo.extraTempLow) {
+                for (var extraTemp in elementInfo.extraTempLow) {
+                    if (pixel.temp <= extraTemp) {
+                        result = elementInfo.extraTempLow[extraTemp];
+                    }
+                }
+            }
+            // If result is an array, choose a random item
+            if (Array.isArray(result)) {
+                result = result[Math.floor(Math.random() * result.length)];
+            }
+            if (result === null) {deletePixel(pixel.x,pixel.y);return false}
+            else {
+                if (elements[result].customColor) {
+                    changePixel(pixel,result,false);
+                    pixel.color = color;
+                }
+                else if (elementInfo.stateLowColor) {
+                    changePixel(pixel,result,false);
+                    pixel.color = pixelColorPick(pixel,elementInfo.stateLowColor);
+                }
+                else if (elementInfo.stateLowColorMultiplier) {
+                    var color = pixel.color;
+                    changePixel(pixel,result,false);
+                    var rgb = color.match(/\d+/g);
+                    var m = elementInfo.stateLowColorMultiplier;
+                    if (Array.isArray(m)) {
+                        m = m[0];
+                    }
+                    var r = Math.floor(rgb[0] * m);
+                    var g = Math.floor(rgb[1] * m);
+                    var b = Math.floor(rgb[2] * m);
+                    // Make sure the color is within the RGB range
+                    r = Math.max(0, Math.min(255, r));
+                    g = Math.max(0, Math.min(255, g));
+                    b = Math.max(0, Math.min(255, b));
+                    pixel.color = "rgb("+r+","+g+","+b+")";
+                }
+                else { changePixel(pixel,result,false); }
+            }
+        }
+        return true;
+    }
 });