diff --git a/docs/src/.vuepress/config.js b/docs/src/.vuepress/config.js
index 7c96c4f..dae83da 100755
--- a/docs/src/.vuepress/config.js
+++ b/docs/src/.vuepress/config.js
@@ -18,7 +18,7 @@ module.exports = {
    * ref：https://v1.vuepress.vuejs.org/config/#head
    */
   head: [
-    ['meta', { name: 'theme-color', content: '#3eaf7c' }],
+    ['meta', { name: 'theme-color', content: '#de9502' }],
     ['meta', { name: 'apple-mobile-web-app-capable', content: 'yes' }],
     ['meta', { name: 'apple-mobile-web-app-status-bar-style', content: 'black' }]
   ],
@@ -60,6 +60,17 @@ module.exports = {
             'reference'
           ]
         }
+      ],
+      '/guide/itemscript/': [
+        {
+          title: 'Itemscript Module',
+          collapsable: false,
+          children: [
+            '',
+            'filters',
+            'reference'
+          ]
+        }
       ]
     }
   },
diff --git a/docs/src/.vuepress/styles/palette.styl b/docs/src/.vuepress/styles/palette.styl
index 6490cb3..47cd36a 100755
--- a/docs/src/.vuepress/styles/palette.styl
+++ b/docs/src/.vuepress/styles/palette.styl
@@ -4,7 +4,7 @@
  * ref：https://v1.vuepress.vuejs.org/zh/config/#palette-styl
  */
 
-$accentColor = #3eaf7c
+$accentColor = #de9502
 $textColor = #2c3e50
 $borderColor = #eaecef
-$codeBgColor = #282c34
+$codeBgColor = #233536
diff --git a/docs/src/guide/itemscript/README.md b/docs/src/guide/itemscript/README.md
index ded1c7f..153e48d 100644
--- a/docs/src/guide/itemscript/README.md
+++ b/docs/src/guide/itemscript/README.md
@@ -1,3 +1,18 @@
 # Getting Started
 
-> This page is a work-in-progress.
\ No newline at end of file
+The Itemscript module provides a flexible, powerful interface for managing a turtle's inventory, and any connected inventories.
+
+## Installing
+
+To install this module, run the following command from your turtle's console:
+
+```shell
+wget https://raw.githubusercontent.com/andrewlalis/movescript/main/min/itemscript.lua
+```
+
+And then use it in a script:
+
+```lua
+local is = require("itemscript")
+print("Non-log items: " .. is.totalCount("!log"))
+```
diff --git a/docs/src/guide/itemscript/filters.md b/docs/src/guide/itemscript/filters.md
new file mode 100644
index 0000000..afe43a8
--- /dev/null
+++ b/docs/src/guide/itemscript/filters.md
@@ -0,0 +1,66 @@
+# Filters
+
+Most of the functions provided by Itemscript make use of *filter expressions*. You'll often see it denoted in function parameters as `filterExpr`. A filter expression can be one of several things:
+
+- A function that takes an `item` (as obtained from `getItemDetail`) and returns a boolean `true` if the item matches, or `false` if it doesn't.
+- A string or list of strings (see [filter expression strings](#filter-expression-strings)).
+
+## Filter Functions
+
+Filter functions **must** follow these rules to avoid errors or undefined behavior:
+
+- The function accepts a single `item` parameter, which may be `nil`, or a table like `{ name = "item_name", count = 32 }`.
+- The function returns `true` if the given item should pass the filter or `false` if not.
+
+Below is a simple example of a filter function that only allows item stacks with more than 10 items.
+
+```lua
+function myFilterFunction(item)
+    return item ~= nil and item.count > 10
+end
+```
+
+## Filter Expression Strings
+
+In the case of strings, a **filter expression string** is a string that can be used to match against an item with some advanced options.
+
+The most basic form of an expression string is just an item name, like `"minecraft:dirt"`, or `"create:train_door"`. Most normal items will begin with the `minecraft:` *namespace* prefix. If you don't include such a prefix, and you're not doing a [fuzzy match](#fuzzy-match), itemscript will add `minecraft:` for you.
+
+For example, we can count the number of stone items in our inventory like this:
+
+```lua
+local is = require("itemscript")
+print(is.totalCount("minecraft:stone"))
+print(is.totalCount("stone")) -- "minecraft:" is added for us.
+```
+
+### Negation
+
+If `!` is added to the beginning of the string, only items that **don't** match will pass the filter.
+
+For example, suppose we want to drop everything except for oak planks:
+
+```lua
+local is = require("itemscript")
+is.dropAll("!oak_planks")
+```
+
+### Fuzzy Match
+
+If `#` is added to the beginning of the string, a *fuzzy* match will be performed, instead of a normal one. That is, instead of looking for an item whose name exactly matches, we look for the first item whose name we can find a given pattern in. In other words, normally when matching we check if `item.name == your_text`, and in a fuzzy match, we check if `string.find(item.name, your_text)` is not `nil`.
+
+For example, suppose we want to count the total number of logs of any type. This would be quite tedious to do normally, but with fuzzy matching, it's trivial:
+
+```lua
+local is = require("itemscript")
+print(is.totalCount("#log"))
+```
+
+Because a fuzzy match is nothing more than passing your text to Lua's `string.find` function, you can also take advantage of the more advanced *character classes* to define matching patterns. [Read about Lua's pattern matching documentation here.](https://www.lua.org/pil/20.2.html)
+
+In the example below, we filter to all items that begin with the text `minecraft:red_` by using the special `^` character.
+
+```lua
+local is = require("itemscript")
+print(is.totalCount("#^minecraft:red_"))
+```
\ No newline at end of file
diff --git a/docs/src/guide/itemscript/reference.md b/docs/src/guide/itemscript/reference.md
new file mode 100644
index 0000000..0a1e0cb
--- /dev/null
+++ b/docs/src/guide/itemscript/reference.md
@@ -0,0 +1,28 @@
+# Module Reference
+
+The following is a complete reference of the **itemscript** module. All symbols defined here belong to the `itemscript` module, and can be accessed via an instance of that module. For example:
+
+```lua
+local is = require("itemscript")
+is.dropAll("stone")
+```
+
+## `totalCount(filterExpr)`
+
+Computes the total number of items matching the given [filter expression](./filters.md).
+
+## `select(filterExpr)`
+
+Selects the first inventory slot containing an item that matches the given [filter expression](./filters.md). Returns `true` if a slot was selected successfully, or `false` if no matching item could be found.
+
+## `dropAll(filterExpr)`
+
+Drops all items from the turtle's inventory matching the given [filter expression](./filters.md).
+
+## `dropAllDown(filterExpr)`
+
+Variant of [dropAll](#dropall-filterexpr) which drops items downward.
+
+## `dropAllUp(filterExpr)`
+
+Variant of [dropAll](#dropall-filterexpr) which drops items upward.
\ No newline at end of file
diff --git a/docs/src/guide/movescript/README.md b/docs/src/guide/movescript/README.md
index 68957d3..560fce4 100644
--- a/docs/src/guide/movescript/README.md
+++ b/docs/src/guide/movescript/README.md
@@ -7,7 +7,7 @@ The Movescript module provides a simple interface for executing *movescript sour
 To install this module, run the following command from your turtle's console:
 
 ```shell
-wget https://raw.githubusercontent.com/andrewlalis/movescript/main/min/movescript.lua movescript.lua
+wget https://raw.githubusercontent.com/andrewlalis/movescript/main/min/movescript.lua
 ```
 
 And then use it in a script:
diff --git a/docs/src/guide/movescript/reference.md b/docs/src/guide/movescript/reference.md
index dbca63e..4fccbd8 100644
--- a/docs/src/guide/movescript/reference.md
+++ b/docs/src/guide/movescript/reference.md
@@ -7,18 +7,14 @@ local ms = require("movescript")
 ms.run("2F")
 ```
 
-## Functions
-
-### `run(script, settings)`
+## `run(script, settings)`
 
 Runs the given `script` string as a movescript, and optionally a `settings` table can be provided. Otherwise, [default settings](settings.md) will be used.
 
-### `runFile(filename, settings)`
+## `runFile(filename, settings)`
 
 Reads content from the given filename and executes it as a script. Just like with `run`, an optional `settings` table can be provided.
 
-## Variables
-
-### `defaultSettings`
+## `defaultSettings`
 
 A table containing the default settings for any script executed by the movescript module.
\ No newline at end of file