diff --git a/internal_packages/LICENSE b/internal_packages/LICENSE
new file mode 100644
index 000000000..19bfa964d
--- /dev/null
+++ b/internal_packages/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Noah Buscher
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/internal_packages/README.md b/internal_packages/README.md
new file mode 100644
index 000000000..e29fd6da8
--- /dev/null
+++ b/internal_packages/README.md
@@ -0,0 +1,13 @@
+# Taiga
+
+Taiga is a clean, simple, Mailbox-inspired theme for N1 that allows you to focus on what matters most: your emails.
+
+![](./preview.jpg)
+
+## Installing
+
+1. [Download](https://nylas.com/n1) Nylas N1 email client if you have not yet
+2. [Grab](https://github.com/noahbuscher/N1-Taiga/releases) the latest release of Taiga
+3. Open `N1>Preferences>General>Select theme` and select `Install new theme...` from the dropdown
+
+Profit! :money_with_wings:
diff --git a/internal_packages/package.json b/internal_packages/package.json
new file mode 100644
index 000000000..11a3fb808
--- /dev/null
+++ b/internal_packages/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "N1-Taiga",
+  "displayName": "Taiga",
+  "theme": "Taiga",
+  "version": "0.2.8",
+  "description": "A clean, Mailbox-inspired theme for Nylas N1",
+  "license": "GPL-3.0",
+  "engines": {
+    "nylas": "*"
+  },
+  "styleSheets": ["controls", "email-frame", "sidebar", "threads", "notifications"],
+  "private": true
+}
diff --git a/internal_packages/preview.jpg b/internal_packages/preview.jpg
new file mode 100644
index 000000000..4d4e0a89f
Binary files /dev/null and b/internal_packages/preview.jpg differ
diff --git a/internal_packages/styles/controls.less b/internal_packages/styles/controls.less
new file mode 100644
index 000000000..84cea8c4a
--- /dev/null
+++ b/internal_packages/styles/controls.less
@@ -0,0 +1,138 @@
+@import "variables";
+
+.header-container {
+  margin-right: 10px;
+}
+
+/**
+ * Buttons
+ */
+.btn-toolbar, .token, .actions>.btn, .new-package>.btn, .appearance-mode-switch>.btn {
+  box-shadow: none !important;
+  background: @white !important;
+  border: 1px solid @taiga-light !important;
+  border-radius: @base-border-radius !important;
+  cursor: pointer !important;
+}
+
+.composer-action-bar-content {
+  .btn-toolbar {
+    border: 0 !important;
+    border-radius: 0 !important;
+    background: transparent !important;
+  }
+}
+
+body.platform-win32 {
+  .sheet-toolbar-container {
+    .btn-toolbar {
+      border: 0 !important;
+    }
+  }
+}
+
+.btn.btn-emphasis {
+  background-color: @taiga-accent !important;
+  border-color: @taiga-accent !important;
+  color: @white !important;
+
+  img.content-mask {
+    background-color: @white !important;
+  }
+}
+
+.button-dropdown.bordered {
+  .primary-item {
+    cursor: pointer !important;
+    box-shadow: none !important;
+    background: @white !important;
+    border: 1px solid @taiga-light !important;
+    border-top-left-radius: @base-border-radius !important;
+    border-bottom-left-radius: @base-border-radius !important;
+    img {
+      position: relative;
+      top: -2px;
+    }
+  }
+
+  .secondary-picker {
+    cursor: pointer !important;
+    box-shadow: none !important;
+    background: @white !important;
+    border: 1px solid @taiga-light !important;
+    border-top-right-radius: @base-border-radius !important;
+    border-bottom-right-radius: @base-border-radius !important;
+    margin-left: -1px !important;
+  }
+
+  .secondary-items {
+    .item  {
+      cursor: pointer;
+      color: @taiga-light !important;
+      background: @white !important;
+
+      .button-dropdown {
+        img {
+          background: @taiga-light  !important;
+        }
+      }
+    }
+  }
+}
+
+.sheet-toolbar .btn-toolbar {
+  height: 2em !important;
+  line-height: 1 !important;
+  margin-top: 6px !important;
+}
+
+/**
+ * Feedback button
+ */
+.btn-feedback {
+  background: @taiga-accent !important;
+  border: none !important;
+}
+
+/**
+ * Search bar
+ */
+.content-container {
+  .item.selected {
+    background: @taiga-light !important;
+    color: @white !important;
+  }
+}
+
+/**
+ * Dropdown
+ */
+.menu {
+  .item.selected {
+    background: @taiga-light !important;
+    .primary {
+      color: @white !important;
+    }
+    .secondary {
+      color: @taiga-lighter !important;
+    }
+  }
+}
+
+/**
+ * Plugin page
+ */
+.package {
+  border-radius: @base-border-radius;
+}
+
+/**
+ * Prefs page
+ */
+.appearance-mode {
+  cursor: pointer;
+
+  &.active {
+    background-color: lighten(@taiga-light, 30%) !important;
+  }
+}
diff --git a/internal_packages/styles/email-frame.less b/internal_packages/styles/email-frame.less
new file mode 100644
index 000000000..ecf8d688f
--- /dev/null
+++ b/internal_packages/styles/email-frame.less
@@ -0,0 +1,10 @@
+@import "variables";
+
+.ignore-in-parent-frame {
+  body {
+    color: @taiga-dark;
+  }
+  img {
+    color: @taiga-dark;
+  }
+}
diff --git a/internal_packages/styles/notifications.less b/internal_packages/styles/notifications.less
new file mode 100644
index 000000000..0784962fe
--- /dev/null
+++ b/internal_packages/styles/notifications.less
@@ -0,0 +1,11 @@
+@import "variables";
+
+.notifications-sticky, .notification-developer, .notifications-sticky-item, .notification-info {
+  color: @white !important;
+  background: @taiga-accent !important;
+
+  .action {
+    color: @white !important;
+    background: darken(@taiga-accent, 20%) !important;
+  }
+}
diff --git a/internal_packages/styles/sidebar.less b/internal_packages/styles/sidebar.less
new file mode 100644
index 000000000..e2e571336
--- /dev/null
+++ b/internal_packages/styles/sidebar.less
@@ -0,0 +1,49 @@
+@import "variables";
+
+#account-switcher .primary-item .name {
+  color: @taiga-dark;
+}
+
+.account-sidebar-sections {
+  background-color: @white !important;
+
+  section {
+    .item-container {
+      margin: 0 10px !important;
+
+      .disclosure-triangle {
+        display: none;
+      }
+
+      .item {
+        padding: 0 10px !important;
+        color: @taiga-light !important;
+        cursor: pointer !important;
+
+        .item-count-box {
+          background: transparent !important;
+          color: @taiga-light !important;
+          box-shadow: 0 0.5px 0 @taiga-light, 0 -0.5px 0 @taiga-light, 0.5px 0 0 @taiga-light, -0.5px 0 0 @taiga-light !important;
+        }
+
+        &.selected {
+          background: @taiga-accent !important;
+          border-radius: @base-border-radius;
+          color: @white !important;
+
+          .item-count-box {
+            background: transparent !important;
+            color: @white !important;
+            box-shadow: 0 0.5px 0 @white, 0 -0.5px 0 @white, 0.5px 0 0 @white, -0.5px 0 0 @white !important;
+          }
+
+          .icon {
+            img {
+              background: @white !important;
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/internal_packages/styles/theme-colors.less b/internal_packages/styles/theme-colors.less
new file mode 100644
index 000000000..0d669f694
--- /dev/null
+++ b/internal_packages/styles/theme-colors.less
@@ -0,0 +1,2 @@
+@component-active-color: #5dade1;
+@toolbar-background-color: #ddedf4;
\ No newline at end of file
diff --git a/internal_packages/styles/threads.less b/internal_packages/styles/threads.less
new file mode 100644
index 000000000..006453342
--- /dev/null
+++ b/internal_packages/styles/threads.less
@@ -0,0 +1,72 @@
+@import "variables";
+
+.list-tabular .list-column.list-column-Item {
+  margin-left: -20px;
+  padding-left: 30px;
+}
+
+.thread-list {
+  .list-container {
+    .list-item {
+      &.focused:hover .list-column-HoverActions .inner {
+        color: @taiga-dark !important;
+        background-image: linear-gradient(90deg, fadeout(@taiga-lighter, 100%) 0%, darken(@taiga-lighter, 10%) 100%);
+
+        .action {
+          -webkit-filter: none;
+        }
+        .thread-icon {
+          &:not(.thread-icon-star) {
+            opacity: 0.7;
+          }
+        }
+      }
+      &.focused {
+        .thread-icon, .mail-important-icon, .draft-icon {
+          -webkit-filter: none;
+        }
+      }
+      &:hover {
+        .thread-icon {
+          visibility: inherit;
+        }
+      }
+      .list-column {
+        border-bottom: 0 !important;
+      }
+    }
+    .scroll-region-content {
+      .scroll-region-content-inner {
+        .list-rows {
+          .list-item {
+            cursor: pointer !important;
+            box-sizing: border-box;
+            border: 0 !important;
+            background-color: @white !important;
+            color: @taiga-dark !important;
+            &.focused {
+              color: @taiga-dark !important;
+              background-color: darken(@taiga-lighter, 5%) !important;
+            }
+            &.selected {
+              color: @taiga-dark !important;
+              background-color: darken(@taiga-lighter, 5%) !important;
+            }
+            &.keyboard-cursor {
+              .list-column-Item {
+                border-left: 4px solid darken(@taiga-lighter, 50%) !important;
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+  .thread-icon {
+    background-image: url(../static/images/thread-list/icon-star-hover-@2x.png);
+
+    &:not(.thread-icon-star) {
+      visibility: hidden;
+    }
+  }
+}
diff --git a/internal_packages/styles/ui-variables.less b/internal_packages/styles/ui-variables.less
new file mode 100644
index 000000000..300054774
--- /dev/null
+++ b/internal_packages/styles/ui-variables.less
@@ -0,0 +1,19 @@
+@import "variables";
+
+@accent-primary:         @taiga-light;
+@accent-primary-dark:    darken(@taiga-light, 20%);
+
+@background-secondary: @white;
+@text-color: @taiga-dark;
+@text-color-subtle: lighten(@taiga-dark, 20%);
+@text-color-very-subtle: @taiga-light;
+@text-color-inverse: @taiga-light;
+@text-color-inverse-subtle: darken(@taiga-light, 30%);
+@text-color-inverse-very-subtle: darken(@taiga-light, 20%);
+
+@panel-background-color: @white;
+@toolbar-background-color: @white;
+
+@btn-default-bg-color: @white;
+@btn-default-text-color: @taiga-light;
+@background-gradient: none;
diff --git a/internal_packages/styles/variables.less b/internal_packages/styles/variables.less
new file mode 100644
index 000000000..0fce409c3
--- /dev/null
+++ b/internal_packages/styles/variables.less
@@ -0,0 +1,13 @@
+/**
+ * Colors
+ */
+@taiga-light: darken(#A3ACB1, 10%);
+@taiga-lighter: #F0F7FA;
+@taiga-dark: darken(#727C83, 4%);
+@taiga-accent: #5DADE1;
+@white: #ffffff;
+
+/**
+ * Borders
+ */
+@base-border-radius: 4px;