diff --git a/.vscode/settings.json b/.vscode/settings.json
index 335f886a..c476e951 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,6 @@
 {
-    "editor.defaultFormatter": "esbenp.prettier-vscode"
+    "editor.defaultFormatter": "esbenp.prettier-vscode",
+    "editor.rulers": [
+        110
+    ],
 }
\ No newline at end of file
diff --git a/src/js/game/buildings/counter.js b/src/js/game/buildings/counter.js
index ce2c2f6a..da7fdb21 100644
--- a/src/js/game/buildings/counter.js
+++ b/src/js/game/buildings/counter.js
@@ -14,8 +14,11 @@ export class MetaCounterBuilding extends MetaBuilding {
         super("counter");
     }
 
+    /**
+     * @returns {string} Colour used to represent this building when zoomed out.
+     */
     getSilhouetteColor() {
-        return "#7dc6cd";
+        return "#444e81"; // Dark Blue
     }
 
     /**
@@ -24,15 +27,19 @@ export class MetaCounterBuilding extends MetaBuilding {
      * @returns {Array<[string, string]>}
      */
     getAdditionalStatistics(root, variant) {
-        const speed = root.hubGoals.getBeltBaseSpeed();
+        const speed = root.hubGoals.getBeltBaseSpeed("regular");
         return [[T.ingame.buildingPlacement.infoTexts.speed, formatItemsPerSecond(speed)]];
     }
 
     /**
+     * The counter is unlocked once the belt speed reaches 20 (items/s). This is around the time when items on
+     * a belt begin to blurr. It is also late enough in the game that a player would understand and appreciate
+     * this building.
      * @param {GameRoot} root
      */
     getIsUnlocked(root) {
-        return true; //root.hubGoals.isRewardUnlocked(enumHubGoalRewards.reward_rotater);
+        const beltSpeed = root.hubGoals.getBeltBaseSpeed("regular");
+        return beltSpeed >= 20;
     }
 
     /**
@@ -53,7 +60,6 @@ export class MetaCounterBuilding extends MetaBuilding {
                     {
                         pos: new Vector(0, 0),
                         directions: [enumDirection.bottom],
-                        filter: enumItemType.shape,
                     },
                 ],
             })
diff --git a/src/js/game/component_registry.js b/src/js/game/component_registry.js
index 5a019923..c18ef379 100644
--- a/src/js/game/component_registry.js
+++ b/src/js/game/component_registry.js
@@ -39,7 +39,7 @@ export function initComponentRegistry() {
     assert(
         // @ts-ignore
         require.context("./components", false, /.*\.js/i).keys().length ===
-        gComponentRegistry.getNumEntries(),
+            gComponentRegistry.getNumEntries(),
         "Not all components are registered"
     );
 
diff --git a/src/js/game/components/counter.js b/src/js/game/components/counter.js
index a0148179..32fa223b 100644
--- a/src/js/game/components/counter.js
+++ b/src/js/game/components/counter.js
@@ -1,3 +1,8 @@
+/** @typedef {object} TickCount
+ * @property {number} gameTimeSeconds
+ * @property {number} count
+ */
+
 import { types } from "../../savegame/serialization";
 import { Component } from "../component";
 import { BaseItem } from "../base_item";
@@ -33,22 +38,24 @@ export class ItemCounterComponent extends Component {
          */
         this.inputSlots = [];
 
+        /** @type {number} a count of items that have passed through the component since the last tick */
         this.currentCount = 0;
 
-        this.lastResetTime = 0;
-
-        /** @typedef {object} TickCount
-         * @property {number} gameTimeSeconds
-         * @property {number} count
+        /**
+         * Maintained every game tick, this aray contains the item counts for every tick in the past 1 second.
+         * @type {TickCount[]}
          */
-        /** @type {TickCount[]} */
         this.tickHistory = [];
 
+        /** @type {number} Calculated and set every second. This is a read only property. */
         this.averageItemsPerSecond = 0;
+
+        /** @type {number} - Last time the averageItemsPerSecond property was reset. */
+        this.lastResetTime = 0;
     }
 
     /**
-     * Called every time an item leaves the counter
+     * Called every time an item leaves the counter building
      */
     countNewItem() {
         this.currentCount++;
@@ -60,6 +67,7 @@ export class ItemCounterComponent extends Component {
      */
     tick(gameTime) {
         const count = this.currentCount;
+        // Reset the count
         this.currentCount = 0;
 
         this.tickHistory.push({
@@ -68,6 +76,8 @@ export class ItemCounterComponent extends Component {
         });
 
         // Only keep history for the last second.
+        // TODO: Possible optimisation to replace with a for loop. Unsure if the logic within the loop will
+        // counteract any speed gained by not using .filter
         this.tickHistory = this.tickHistory.filter(tick => gameTime.timeSeconds - tick.gameTimeSeconds <= 1);
 
         const delta = gameTime.timeSeconds - this.lastResetTime;
diff --git a/src/js/game/core.js b/src/js/game/core.js
index ef3387de..b4bf8c2b 100644
--- a/src/js/game/core.js
+++ b/src/js/game/core.js
@@ -424,6 +424,7 @@ export class GameCore {
             // Energy consumer (Battery icons)
             systems.energyConsumer.draw(params);
 
+            // Items per second overlay
             systems.counter.draw(params);
         }
 
diff --git a/src/js/game/hud/parts/buildings_toolbar.js b/src/js/game/hud/parts/buildings_toolbar.js
index 41df709b..00e5ba7d 100644
--- a/src/js/game/hud/parts/buildings_toolbar.js
+++ b/src/js/game/hud/parts/buildings_toolbar.js
@@ -4,7 +4,6 @@ import { MetaEnergyGenerator } from "../../buildings/energy_generator";
 import { MetaMinerBuilding } from "../../buildings/miner";
 import { MetaMixerBuilding } from "../../buildings/mixer";
 import { MetaPainterBuilding } from "../../buildings/painter";
-import { MetaCounterBuilding } from "../../buildings/counter";
 import { MetaRotaterBuilding } from "../../buildings/rotater";
 import { MetaSplitterBuilding } from "../../buildings/splitter";
 import { MetaStackerBuilding } from "../../buildings/stacker";
@@ -13,6 +12,7 @@ import { MetaUndergroundBeltBuilding } from "../../buildings/underground_belt";
 import { enumLayer } from "../../root";
 import { HUDBaseToolbar } from "./base_toolbar";
 import { MetaAdvancedProcessorBuilding } from "../../buildings/advanced_processor";
+import { MetaCounterBuilding } from "../../buildings/counter";
 
 const supportedBuildings = [
     MetaBeltBaseBuilding,
@@ -20,12 +20,12 @@ const supportedBuildings = [
     MetaUndergroundBeltBuilding,
     MetaMinerBuilding,
     MetaCutterBuilding,
-    MetaCounterBuilding,
     MetaRotaterBuilding,
     MetaStackerBuilding,
     MetaMixerBuilding,
     MetaPainterBuilding,
     MetaTrashBuilding,
+    MetaCounterBuilding,
 
     MetaEnergyGenerator,
     MetaAdvancedProcessorBuilding,
diff --git a/src/js/game/key_action_mapper.js b/src/js/game/key_action_mapper.js
index 090d6066..67101a80 100644
--- a/src/js/game/key_action_mapper.js
+++ b/src/js/game/key_action_mapper.js
@@ -49,7 +49,6 @@ export const KEYMAPPINGS = {
         underground_belt: { keyCode: key("3") },
         miner: { keyCode: key("4") },
         cutter: { keyCode: key("5") },
-        counter: { keyCode: key("~") },
         rotater: { keyCode: key("6") },
         stacker: { keyCode: key("7") },
         mixer: { keyCode: key("8") },
@@ -57,6 +56,7 @@ export const KEYMAPPINGS = {
         trash: { keyCode: key("0") },
         energy_generator: { keyCode: key("O") },
         advanced_processor: { keyCode: key("P") },
+        counter: { keyCode: key("J") },
 
         // Wires layer
         wire: { keyCode: key("1") },
diff --git a/src/js/game/systems/counter.js b/src/js/game/systems/counter.js
index 8c866d16..a238efec 100644
--- a/src/js/game/systems/counter.js
+++ b/src/js/game/systems/counter.js
@@ -3,13 +3,11 @@ import { ItemCounterComponent } from "../components/counter";
 import { Entity } from "../entity";
 import { GameSystemWithFilter } from "../game_system_with_filter";
 import { ShapeItem } from "../items/shape_item";
-import { Loader } from "../../core/loader";
+import { ColorItem } from "../items/color_item";
 
 export class CounterSystem extends GameSystemWithFilter {
     constructor(root) {
         super(root, [ItemCounterComponent]);
-
-        this.storageOverlaySprite = Loader.getSprite("sprites/misc/storage_overlay.png");
     }
 
     update() {
@@ -23,8 +21,7 @@ export class CounterSystem extends GameSystemWithFilter {
             let outItem = null;
 
             if (items.length > 0) {
-                const inputItem = /** @type {ShapeItem} */ (items[0].item);
-                assert(inputItem instanceof ShapeItem, "Input for counting is not a shape");
+                const inputItem = /** @type {ShapeItem|ColorItem} */ (items[0].item);
 
                 outItem = inputItem;
                 let slot = ejectorComp.getFirstFreeSlot(entity.layer);
@@ -43,6 +40,7 @@ export class CounterSystem extends GameSystemWithFilter {
         }
     }
 
+    // Only render the items/s overlay if the entity is on screen
     draw(parameters) {
         this.forEachMatchingEntityOnScreen(parameters, this.drawEntity.bind(this));
     }
@@ -67,7 +65,7 @@ export class CounterSystem extends GameSystemWithFilter {
         context.font = "bold 8.5px GameFont";
         context.textAlign = "center";
         context.fillStyle = "#64666e";
-        context.fillText(counterComp.averageItemsPerSecond, center.x, center.y + 3);
+        context.fillText(counterComp.averageItemsPerSecond.toString(), center.x, center.y + 3);
 
         context.textAlign = "left";
         context.globalAlpha = 1;
diff --git a/src/js/game/systems/item_ejector.js b/src/js/game/systems/item_ejector.js
index 97a45749..6cb7b925 100644
--- a/src/js/game/systems/item_ejector.js
+++ b/src/js/game/systems/item_ejector.js
@@ -219,9 +219,9 @@ export class ItemEjectorSystem extends GameSystemWithFilter {
                 sourceSlot.progress = Math.min(
                     1,
                     sourceSlot.progress +
-                    progressGrowth *
-                    this.root.hubGoals.getBeltBaseSpeed(sourceSlot.layer) *
-                    globalConfig.beltItemSpacingByLayer[sourceSlot.layer]
+                        progressGrowth *
+                            this.root.hubGoals.getBeltBaseSpeed(sourceSlot.layer) *
+                            globalConfig.beltItemSpacingByLayer[sourceSlot.layer]
                 );
 
                 // Check if we are still in the process of ejecting, can't proceed then
diff --git a/translations/base-en.yaml b/translations/base-en.yaml
index f3bab4f1..010ddfde 100644
--- a/translations/base-en.yaml
+++ b/translations/base-en.yaml
@@ -507,7 +507,7 @@ buildings:
     counter:
         default:
             name: &counter Counter
-            description: COUNTER
+            description: Displays a count of items that passed by in the last second.
 
     stacker:
         default: