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-rw-r--r--app/javascript/mastodon/actions/timelines.js20
-rw-r--r--app/javascript/mastodon/features/community_timeline/index.js24
-rw-r--r--app/javascript/mastodon/features/public_timeline/index.js24
-rw-r--r--app/javascript/mastodon/features/status/components/action_bar.js2
-rw-r--r--app/javascript/mastodon/features/status/index.js47
-rw-r--r--app/javascript/mastodon/reducers/contexts.js94
-rw-r--r--app/javascript/styles/mastodon-light.scss229
-rw-r--r--app/javascript/styles/mastodon-light/diff.scss157
-rw-r--r--app/javascript/styles/mastodon-light/variables.scss38
-rw-r--r--app/javascript/styles/mastodon/about.scss2
-rw-r--r--app/lib/activitypub/activity/create.rb2
-rw-r--r--app/serializers/initial_state_serializer.rb2
12 files changed, 324 insertions, 317 deletions
diff --git a/app/javascript/mastodon/actions/timelines.js b/app/javascript/mastodon/actions/timelines.js
index 8f54dfd8a..11a199db6 100644
--- a/app/javascript/mastodon/actions/timelines.js
+++ b/app/javascript/mastodon/actions/timelines.js
@@ -13,21 +13,9 @@ export const TIMELINE_SCROLL_TOP = 'TIMELINE_SCROLL_TOP';
 
 export const TIMELINE_DISCONNECT = 'TIMELINE_DISCONNECT';
 
-export const TIMELINE_CONTEXT_UPDATE = 'CONTEXT_UPDATE';
-
 export function updateTimeline(timeline, status) {
   return (dispatch, getState) => {
     const references = status.reblog ? getState().get('statuses').filter((item, itemId) => (itemId === status.reblog.id || item.get('reblog') === status.reblog.id)).map((_, itemId) => itemId) : [];
-    const parents = [];
-
-    if (status.in_reply_to_id) {
-      let parent = getState().getIn(['statuses', status.in_reply_to_id]);
-
-      while (parent && parent.get('in_reply_to_id')) {
-        parents.push(parent.get('id'));
-        parent = getState().getIn(['statuses', parent.get('in_reply_to_id')]);
-      }
-    }
 
     dispatch(importFetchedStatus(status));
 
@@ -37,14 +25,6 @@ export function updateTimeline(timeline, status) {
       status,
       references,
     });
-
-    if (parents.length > 0) {
-      dispatch({
-        type: TIMELINE_CONTEXT_UPDATE,
-        status,
-        references: parents,
-      });
-    }
   };
 };
 
diff --git a/app/javascript/mastodon/features/community_timeline/index.js b/app/javascript/mastodon/features/community_timeline/index.js
index 58b8a8b73..f9ee835bc 100644
--- a/app/javascript/mastodon/features/community_timeline/index.js
+++ b/app/javascript/mastodon/features/community_timeline/index.js
@@ -8,7 +8,7 @@ import ColumnHeader from '../../components/column_header';
 import { expandCommunityTimeline } from '../../actions/timelines';
 import { addColumn, removeColumn, moveColumn, changeColumnParams } from '../../actions/columns';
 import ColumnSettingsContainer from './containers/column_settings_container';
-// import SectionHeadline from './components/section_headline';
+import SectionHeadline from './components/section_headline';
 import { connectCommunityStream } from '../../actions/streaming';
 
 const messages = defineMessages({
@@ -100,17 +100,15 @@ export default class CommunityTimeline extends React.PureComponent {
     const { intl, hasUnread, columnId, multiColumn, onlyMedia } = this.props;
     const pinned = !!columnId;
 
-    // pending
-    //
-    // const headline = (
-    //   <SectionHeadline
-    //     timelineId='community'
-    //     to='/timelines/public/local'
-    //     pinned={pinned}
-    //     onlyMedia={onlyMedia}
-    //     onClick={this.handleHeadlineLinkClick}
-    //   />
-    // );
+    const headline = (
+      <SectionHeadline
+        timelineId='community'
+        to='/timelines/public/local'
+        pinned={pinned}
+        onlyMedia={onlyMedia}
+        onClick={this.handleHeadlineLinkClick}
+      />
+    );
 
     return (
       <Column ref={this.setRef}>
@@ -128,7 +126,7 @@ export default class CommunityTimeline extends React.PureComponent {
         </ColumnHeader>
 
         <StatusListContainer
-          // prepend={headline}
+          prepend={headline}
           trackScroll={!pinned}
           scrollKey={`community_timeline-${columnId}`}
           timelineId={`community${onlyMedia ? ':media' : ''}`}
diff --git a/app/javascript/mastodon/features/public_timeline/index.js b/app/javascript/mastodon/features/public_timeline/index.js
index 2fce4d581..15cc3e31d 100644
--- a/app/javascript/mastodon/features/public_timeline/index.js
+++ b/app/javascript/mastodon/features/public_timeline/index.js
@@ -8,7 +8,7 @@ import ColumnHeader from '../../components/column_header';
 import { expandPublicTimeline } from '../../actions/timelines';
 import { addColumn, removeColumn, moveColumn, changeColumnParams } from '../../actions/columns';
 import ColumnSettingsContainer from './containers/column_settings_container';
-// import SectionHeadline from '../community_timeline/components/section_headline';
+import SectionHeadline from '../community_timeline/components/section_headline';
 import { connectPublicStream } from '../../actions/streaming';
 
 const messages = defineMessages({
@@ -100,17 +100,15 @@ export default class PublicTimeline extends React.PureComponent {
     const { intl, columnId, hasUnread, multiColumn, onlyMedia } = this.props;
     const pinned = !!columnId;
 
-    // pending
-    //
-    // const headline = (
-    //   <SectionHeadline
-    //     timelineId='public'
-    //     to='/timelines/public'
-    //     pinned={pinned}
-    //     onlyMedia={onlyMedia}
-    //     onClick={this.handleHeadlineLinkClick}
-    //   />
-    // );
+    const headline = (
+      <SectionHeadline
+        timelineId='public'
+        to='/timelines/public'
+        pinned={pinned}
+        onlyMedia={onlyMedia}
+        onClick={this.handleHeadlineLinkClick}
+      />
+    );
 
     return (
       <Column ref={this.setRef}>
@@ -128,7 +126,7 @@ export default class PublicTimeline extends React.PureComponent {
         </ColumnHeader>
 
         <StatusListContainer
-          // prepend={headline}
+          prepend={headline}
           timelineId={`public${onlyMedia ? ':media' : ''}`}
           onLoadMore={this.handleLoadMore}
           trackScroll={!pinned}
diff --git a/app/javascript/mastodon/features/status/components/action_bar.js b/app/javascript/mastodon/features/status/components/action_bar.js
index bb9b75505..9162e1326 100644
--- a/app/javascript/mastodon/features/status/components/action_bar.js
+++ b/app/javascript/mastodon/features/status/components/action_bar.js
@@ -155,7 +155,7 @@ export default class ActionBar extends React.PureComponent {
       <div className='detailed-status__action-bar'>
         <div className='detailed-status__button'><IconButton title={intl.formatMessage(messages.reply)} icon={status.get('in_reply_to_id', null) === null ? 'reply' : 'reply-all'} onClick={this.handleReplyClick} /></div>
         <div className='detailed-status__button'><IconButton disabled={reblog_disabled} active={status.get('reblogged')} title={reblog_disabled ? intl.formatMessage(messages.cannot_reblog) : intl.formatMessage(messages.reblog)} icon={reblogIcon} onClick={this.handleReblogClick} /></div>
-        <div className='detailed-status__button'><IconButton animate active={status.get('favourited')} title={intl.formatMessage(messages.favourite)} icon='star' onClick={this.handleFavouriteClick} activeStyle={{ color: '#ca8f04' }} /></div>
+        <div className='detailed-status__button'><IconButton className='star-icon' animate active={status.get('favourited')} title={intl.formatMessage(messages.favourite)} icon='star' onClick={this.handleFavouriteClick} /></div>
         {shareButton}
 
         <div className='detailed-status__action-bar-dropdown'>
diff --git a/app/javascript/mastodon/features/status/index.js b/app/javascript/mastodon/features/status/index.js
index d5af2a459..2e53dfa7e 100644
--- a/app/javascript/mastodon/features/status/index.js
+++ b/app/javascript/mastodon/features/status/index.js
@@ -1,3 +1,4 @@
+import Immutable from 'immutable';
 import React from 'react';
 import { connect } from 'react-redux';
 import PropTypes from 'prop-types';
@@ -54,11 +55,47 @@ const messages = defineMessages({
 const makeMapStateToProps = () => {
   const getStatus = makeGetStatus();
 
-  const mapStateToProps = (state, props) => ({
-    status: getStatus(state, props.params.statusId),
-    ancestorsIds: state.getIn(['contexts', 'ancestors', props.params.statusId]),
-    descendantsIds: state.getIn(['contexts', 'descendants', props.params.statusId]),
-  });
+  const mapStateToProps = (state, props) => {
+    const status = getStatus(state, props.params.statusId);
+    let ancestorsIds = Immutable.List();
+    let descendantsIds = Immutable.List();
+
+    if (status) {
+      ancestorsIds = ancestorsIds.withMutations(mutable => {
+        function addAncestor(id) {
+          if (id) {
+            const inReplyTo = state.getIn(['contexts', 'inReplyTos', id]);
+
+            mutable.unshift(id);
+            addAncestor(inReplyTo);
+          }
+        }
+
+        addAncestor(status.get('in_reply_to_id'));
+      });
+
+      descendantsIds = descendantsIds.withMutations(mutable => {
+        function addDescendantOf(id) {
+          const replies = state.getIn(['contexts', 'replies', id]);
+
+          if (replies) {
+            replies.forEach(reply => {
+              mutable.push(reply);
+              addDescendantOf(reply);
+            });
+          }
+        }
+
+        addDescendantOf(status.get('id'));
+      });
+    }
+
+    return {
+      status,
+      ancestorsIds,
+      descendantsIds,
+    };
+  };
 
   return mapStateToProps;
 };
diff --git a/app/javascript/mastodon/reducers/contexts.js b/app/javascript/mastodon/reducers/contexts.js
index ebd01e532..53e70b58e 100644
--- a/app/javascript/mastodon/reducers/contexts.js
+++ b/app/javascript/mastodon/reducers/contexts.js
@@ -3,38 +3,62 @@ import {
   ACCOUNT_MUTE_SUCCESS,
 } from '../actions/accounts';
 import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
-import { TIMELINE_DELETE, TIMELINE_CONTEXT_UPDATE } from '../actions/timelines';
+import { TIMELINE_DELETE, TIMELINE_UPDATE } from '../actions/timelines';
 import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
 
 const initialState = ImmutableMap({
-  ancestors: ImmutableMap(),
-  descendants: ImmutableMap(),
+  inReplyTos: ImmutableMap(),
+  replies: ImmutableMap(),
 });
 
-const normalizeContext = (state, id, ancestors, descendants) => {
-  const ancestorsIds   = ImmutableList(ancestors.map(ancestor => ancestor.id));
-  const descendantsIds = ImmutableList(descendants.map(descendant => descendant.id));
+const normalizeContext = (immutableState, id, ancestors, descendants) => immutableState.withMutations(state => {
+  state.update('inReplyTos', immutableAncestors => immutableAncestors.withMutations(inReplyTos => {
+    state.update('replies', immutableDescendants => immutableDescendants.withMutations(replies => {
+      function addReply({ id, in_reply_to_id }) {
+        if (in_reply_to_id) {
+          const siblings = replies.get(in_reply_to_id, ImmutableList());
 
-  return state.withMutations(map => {
-    map.setIn(['ancestors', id], ancestorsIds);
-    map.setIn(['descendants', id], descendantsIds);
-  });
-};
+          if (!siblings.includes(id)) {
+            const index = siblings.findLastIndex(sibling => sibling.id < id);
+            replies.set(in_reply_to_id, siblings.insert(index + 1, id));
+          }
+
+          inReplyTos.set(id, in_reply_to_id);
+        }
+      }
+
+      if (ancestors[0]) {
+        addReply({ id, in_reply_to_id: ancestors[0].id });
+      }
+
+      if (descendants[0]) {
+        addReply({ id: descendants[0].id, in_reply_to_id: id });
+      }
+
+      [ancestors, descendants].forEach(statuses => statuses.forEach(addReply));
+    }));
+  }));
+});
 
 const deleteFromContexts = (immutableState, ids) => immutableState.withMutations(state => {
-  state.update('ancestors', immutableAncestors => immutableAncestors.withMutations(ancestors => {
-    state.update('descendants', immutableDescendants => immutableDescendants.withMutations(descendants => {
+  state.update('inReplyTos', immutableAncestors => immutableAncestors.withMutations(inReplyTos => {
+    state.update('replies', immutableDescendants => immutableDescendants.withMutations(replies => {
       ids.forEach(id => {
-        descendants.get(id, ImmutableList()).forEach(descendantId => {
-          ancestors.update(descendantId, ImmutableList(), list => list.filterNot(itemId => itemId === id));
-        });
+        const inReplyToIdOfId = inReplyTos.get(id);
+        const repliesOfId = replies.get(id);
+        const siblings = replies.get(inReplyToIdOfId);
 
-        ancestors.get(id, ImmutableList()).forEach(ancestorId => {
-          descendants.update(ancestorId, ImmutableList(), list => list.filterNot(itemId => itemId === id));
-        });
+        if (siblings) {
+          replies.set(inReplyToIdOfId, siblings.filterNot(sibling => sibling === id));
+        }
+
+
+        if (repliesOfId) {
+          repliesOfId.forEach(reply => inReplyTos.delete(reply));
+        }
 
-        descendants.delete(id);
-        ancestors.delete(id);
+        inReplyTos.delete(id);
+        replies.delete(id);
       });
     }));
   }));
@@ -48,23 +72,23 @@ const filterContexts = (state, relationship, statuses) => {
   return deleteFromContexts(state, ownedStatusIds);
 };
 
-const updateContext = (state, status, references) => {
-  return state.update('descendants', map => {
-    references.forEach(parentId => {
-      map = map.update(parentId, ImmutableList(), list => {
-        if (list.includes(status.id)) {
-          return list;
-        }
+const updateContext = (state, status) => {
+  if (status.in_reply_to_id) {
+    return state.withMutations(mutable => {
+      const replies = mutable.getIn(['replies', status.in_reply_to_id], ImmutableList());
 
-        return list.push(status.id);
-      });
+      mutable.setIn(['inReplyTos', status.id], status.in_reply_to_id);
+
+      if (!replies.includes(status.id)) {
+        mutable.setIn(['replies', status.id], replies.push(status.id));
+      }
     });
+  }
 
-    return map;
-  });
+  return state;
 };
 
-export default function contexts(state = initialState, action) {
+export default function replies(state = initialState, action) {
   switch(action.type) {
   case ACCOUNT_BLOCK_SUCCESS:
   case ACCOUNT_MUTE_SUCCESS:
@@ -73,8 +97,8 @@ export default function contexts(state = initialState, action) {
     return normalizeContext(state, action.id, action.ancestors, action.descendants);
   case TIMELINE_DELETE:
     return deleteFromContexts(state, [action.id]);
-  case TIMELINE_CONTEXT_UPDATE:
-    return updateContext(state, action.status, action.references);
+  case TIMELINE_UPDATE:
+    return updateContext(state, action.status);
   default:
     return state;
   }
diff --git a/app/javascript/styles/mastodon-light.scss b/app/javascript/styles/mastodon-light.scss
index 6a22a7822..756a12d86 100644
--- a/app/javascript/styles/mastodon-light.scss
+++ b/app/javascript/styles/mastodon-light.scss
@@ -1,228 +1,3 @@
-// Set variables
-$ui-base-color: #d9e1e8;
-$ui-base-lighter-color: darken($ui-base-color, 57%);
-$ui-highlight-color: #2b90d9;
-$ui-primary-color: darken($ui-highlight-color, 28%);
-$ui-secondary-color: #282c37;
-
-$primary-text-color: black;
-$base-overlay-background: $ui-base-color;
-
-$login-button-color: white;
-$account-background-color: white;
-
-// Import defaults
+@import 'mastodon-light/variables';
 @import 'application';
-
-// Change the color of the log in button
-.button {
-  &.button-alternative-2 {
-    color: $login-button-color;
-  }
-}
-
-// Change columns' default background colors
-.column {
-  > .scrollable {
-    background: lighten($ui-base-color, 13%);
-  }
-}
-
-.drawer__inner {
-  background: $ui-base-color;
-}
-
-.drawer__inner__mastodon {
-  background: $ui-base-color url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 234.80078 31.757813" width="234.80078" height="31.757812"><path d="M19.599609 0c-1.05 0-2.10039.375-2.90039 1.125L0 16.925781v14.832031h234.80078V17.025391l-16.5-15.900391c-1.6-1.5-4.20078-1.5-5.80078 0l-13.80078 13.099609c-1.6 1.5-4.19883 1.5-5.79883 0L179.09961 1.125c-1.6-1.5-4.19883-1.5-5.79883 0L159.5 14.224609c-1.6 1.5-4.20078 1.5-5.80078 0L139.90039 1.125c-1.6-1.5-4.20078-1.5-5.80078 0l-13.79883 13.099609c-1.6 1.5-4.20078 1.5-5.80078 0L100.69922 1.125c-1.600001-1.5-4.198829-1.5-5.798829 0l-13.59961 13.099609c-1.6 1.5-4.200781 1.5-5.800781 0L61.699219 1.125c-1.6-1.5-4.198828-1.5-5.798828 0L42.099609 14.224609c-1.6 1.5-4.198828 1.5-5.798828 0L22.5 1.125C21.7.375 20.649609 0 19.599609 0z" fill="#{hex-color(lighten($ui-base-color, 13%))}"/></svg>') no-repeat bottom / 100% auto;
-}
-
-// Change the default appearance of the content warning button
-.status__content,
-.reply-indicator__content {
-
-  .status__content__spoiler-link {
-
-    background: darken($ui-base-color, 30%);
-
-    &:hover {
-      background: darken($ui-base-color, 35%);
-      text-decoration: none;
-    }
-
-  }
-
-}
-
-// Change the default appearance of the action buttons
-.icon-button {
-
-  &:hover,
-  &:active,
-  &:focus {
-    color: darken($ui-base-color, 40%);
-    transition: color 200ms ease-out;
-  }
-
-  &.disabled {
-    color: darken($ui-base-color, 30%);
-  }
-
-}
-
-.status {
-  &.status-direct {
-    .icon-button.disabled {
-      color: darken($ui-base-color, 30%);
-    }
-  }
-}
-
-button.icon-button i.fa-retweet {
-  &:hover {
-    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='22' height='209'><path d='M4.97 3.16c-.1.03-.17.1-.22.18L.8 8.24c-.2.3.03.78.4.8H3.6v2.68c0 4.26-.55 3.62 3.66 3.62h7.66l-2.3-2.84c-.03-.02-.03-.04-.05-.06H7.27c-.44 0-.72-.3-.72-.72v-2.7h2.5c.37.03.63-.48.4-.77L5.5 3.35c-.12-.17-.34-.25-.53-.2zm12.16.43c-.55-.02-1.32.02-2.4.02H7.1l2.32 2.85.03.06h5.25c.42 0 .72.28.72.72v2.7h-2.5c-.36.02-.56.54-.3.8l3.92 4.9c.18.25.6.25.78 0l3.94-4.9c.26-.28 0-.83-.37-.8H18.4v-2.7c0-3.15.4-3.62-1.25-3.66z' fill='#{hex-color(darken($ui-base-color, 30%))}' stroke-width='0'/><path d='M7.78 19.66c-.24.02-.44.25-.44.5v2.46h-.06c-1.08 0-1.86-.03-2.4-.03-1.64 0-1.25.43-1.25 3.65v4.47c0 4.26-.56 3.62 3.65 3.62H8.5l-1.3-1.06c-.1-.08-.18-.2-.2-.3-.02-.17.06-.35.2-.45l1.33-1.1H7.28c-.44 0-.72-.3-.72-.7v-4.48c0-.44.28-.72.72-.72h.06v2.5c0 .38.54.63.82.38l4.9-3.93c.25-.18.25-.6 0-.78l-4.9-3.92c-.1-.1-.24-.14-.38-.12zm9.34 2.93c-.54-.02-1.3.02-2.4.02h-1.25l1.3 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-}
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-.dropdown-menu {
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-.dropdown-menu__arrow {
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-    color: darken($ui-base-color, 80%);
-
-    &::placeholder {
-      color: darken($ui-base-color, 70%);
-    }
-
-  }
-
-  .compose-form__buttons-wrapper {
-    background: darken($ui-base-color, 10%);
-  }
-
-  .privacy-dropdown__option {
-    color: $ui-primary-color;
-  }
-
-  .privacy-dropdown__option__content {
-
-    strong {
-      color: $ui-primary-color;
-    }
-
-  }
-
-}
-
-// Change the default color used for the text in an empty column or on the error column
-.empty-column-indicator,
-.error-column {
-  color: darken($ui-base-color, 60%);
-}
-
-// Change the default colors used on some parts of the profile pages
-.activity-stream-tabs {
-
-  background: $account-background-color;
-
-  a {
-    &.active {
-      color: $ui-primary-color;
-      }
-  }
-
-}
-
-.activity-stream {
-
-  .entry {
-    background: $account-background-color;
-  }
-
-  .status.light {
-
-    .status__content {
-      color: $primary-text-color;
-    }
-
-    .display-name {
-      strong {
-        color: $primary-text-color;
-      }
-    }
-
-  }
-
-}
-
-.accounts-grid {
-  .account-grid-card {
-
-    .controls {
-      .icon-button {
-        color: $ui-secondary-color;
-      }
-    }
-
-    .name {
-      a {
-        color: $primary-text-color;
-      }
-    }
-
-    .username {
-      color: $ui-secondary-color;
-    }
-
-    .account__header__content {
-      color: $primary-text-color;
-    }
-
-  }
-}
-
+@import 'mastodon-light/diff';
diff --git a/app/javascript/styles/mastodon-light/diff.scss b/app/javascript/styles/mastodon-light/diff.scss
new file mode 100644
index 000000000..42c790bac
--- /dev/null
+++ b/app/javascript/styles/mastodon-light/diff.scss
@@ -0,0 +1,157 @@
+// Notes!
+// Sass color functions, "darken" and "lighten" are automatically replaced.
+
+// Change the colors of button texts
+.button {
+  color: $white;
+
+  &.button-alternative-2 {
+    color: $white;
+  }
+}
+
+// Change default background colors of columns
+.column {
+  > .scrollable {
+    background: $white;
+  }
+}
+
+.drawer__inner {
+  background: $ui-base-color;
+}
+
+.drawer__inner__mastodon {
+  background: $ui-base-color url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 234.80078 31.757813" width="234.80078" height="31.757812"><path d="M19.599609 0c-1.05 0-2.10039.375-2.90039 1.125L0 16.925781v14.832031h234.80078V17.025391l-16.5-15.900391c-1.6-1.5-4.20078-1.5-5.80078 0l-13.80078 13.099609c-1.6 1.5-4.19883 1.5-5.79883 0L179.09961 1.125c-1.6-1.5-4.19883-1.5-5.79883 0L159.5 14.224609c-1.6 1.5-4.20078 1.5-5.80078 0L139.90039 1.125c-1.6-1.5-4.20078-1.5-5.80078 0l-13.79883 13.099609c-1.6 1.5-4.20078 1.5-5.80078 0L100.69922 1.125c-1.600001-1.5-4.198829-1.5-5.798829 0l-13.59961 13.099609c-1.6 1.5-4.200781 1.5-5.800781 0L61.699219 1.125c-1.6-1.5-4.198828-1.5-5.798828 0L42.099609 14.224609c-1.6 1.5-4.198828 1.5-5.798828 0L22.5 1.125C21.7.375 20.649609 0 19.599609 0z" fill="#{hex-color($white)}"/></svg>') no-repeat bottom / 100% auto;
+}
+
+// Change the colors used in the dropdown menu
+.dropdown-menu {
+  background: $ui-base-color;
+}
+
+.dropdown-menu__arrow {
+  &.left {
+    border-left-color: $ui-base-color;
+  }
+
+  &.top {
+    border-top-color: $ui-base-color;
+  }
+
+  &.bottom {
+    border-bottom-color: $ui-base-color;
+  }
+
+  &.right {
+    border-right-color: $ui-base-color;
+  }
+}
+
+.dropdown-menu__item {
+  a {
+    background: $ui-base-color;
+    color: $ui-secondary-color;
+  }
+}
+
+// Change the text colors on inverted background
+.privacy-dropdown__option.active .privacy-dropdown__option__content,
+.privacy-dropdown__option.active .privacy-dropdown__option__content strong,
+.privacy-dropdown__option:hover .privacy-dropdown__option__content,
+.privacy-dropdown__option:hover .privacy-dropdown__option__content strong,
+.dropdown-menu__item a:active,
+.dropdown-menu__item a:focus,
+.dropdown-menu__item a:hover,
+.actions-modal ul li:not(:empty) a.active,
+.actions-modal ul li:not(:empty) a.active button,
+.actions-modal ul li:not(:empty) a:active,
+.actions-modal ul li:not(:empty) a:active button,
+.actions-modal ul li:not(:empty) a:focus,
+.actions-modal ul li:not(:empty) a:focus button,
+.actions-modal ul li:not(:empty) a:hover,
+.actions-modal ul li:not(:empty) a:hover button,
+.admin-wrapper .sidebar ul ul a.selected,
+.simple_form .block-button,
+.simple_form .button,
+.simple_form button {
+  color: $white;
+}
+
+// Change the background colors of modals
+.actions-modal,
+.boost-modal,
+.confirmation-modal,
+.mute-modal,
+.report-modal {
+  background: $ui-secondary-color;
+}
+
+.boost-modal__action-bar,
+.confirmation-modal__action-bar,
+.mute-modal__action-bar {
+  background: darken($ui-secondary-color, 6%);
+}
+
+.react-toggle-track {
+  background: $ui-base-color;
+}
+
+// Change the default color used for the text in an empty column or on the error column
+.empty-column-indicator,
+.error-column {
+  color: $primary-text-color;
+}
+
+// Change the default colors used on some parts of the profile pages
+.activity-stream-tabs {
+  background: $account-background-color;
+
+  a {
+    &.active {
+      color: $ui-primary-color;
+    }
+  }
+}
+
+.activity-stream {
+  .entry {
+    background: $account-background-color;
+  }
+
+  .status.light {
+    .status__content {
+      color: $primary-text-color;
+    }
+
+    .display-name {
+      strong {
+        color: $primary-text-color;
+      }
+    }
+  }
+}
+
+.accounts-grid {
+  .account-grid-card {
+    .controls {
+      .icon-button {
+        color: $ui-secondary-color;
+      }
+    }
+
+    .name {
+      a {
+        color: $primary-text-color;
+      }
+    }
+
+    .username {
+      color: $ui-secondary-color;
+    }
+
+    .account__header__content {
+      color: $primary-text-color;
+    }
+  }
+}
diff --git a/app/javascript/styles/mastodon-light/variables.scss b/app/javascript/styles/mastodon-light/variables.scss
new file mode 100644
index 000000000..4be454e66
--- /dev/null
+++ b/app/javascript/styles/mastodon-light/variables.scss
@@ -0,0 +1,38 @@
+// Dependent colors
+$black: #000000;
+$white: #ffffff;
+
+$classic-base-color: #282c37;
+$classic-primary-color: #9baec8;
+$classic-secondary-color: #d9e1e8;
+$classic-highlight-color: #2b90d9;
+
+// Differences
+$base-overlay-background: $white;
+
+$ui-base-color: $classic-secondary-color !default;
+$ui-base-lighter-color: #b0c0cf;
+$ui-primary-color: #9bcbed;
+$ui-secondary-color: $classic-base-color !default;
+$ui-highlight-color: #2b5fd9;
+
+$primary-text-color: $black !default;
+$darker-text-color: $classic-base-color !default;
+$dark-text-color: #444b5d;
+$action-button-color: #606984;
+
+$inverted-text-color: $black !default;
+$lighter-text-color: $classic-base-color !default;
+$light-text-color: #444b5d;
+
+//Newly added colors
+$account-background-color: $white;
+
+//Invert darkened and lightened colors
+@function darken($color, $amount) {
+  @return hsl(hue($color), saturation($color), lightness($color) + $amount);
+}
+
+@function lighten($color, $amount) {
+  @return hsl(hue($color), saturation($color), lightness($color) - $amount);
+}
diff --git a/app/javascript/styles/mastodon/about.scss b/app/javascript/styles/mastodon/about.scss
index c9c0e3081..77728995d 100644
--- a/app/javascript/styles/mastodon/about.scss
+++ b/app/javascript/styles/mastodon/about.scss
@@ -396,7 +396,7 @@ $small-breakpoint: 960px;
         display: flex;
         justify-content: center;
         align-items: center;
-        color: $ui-primary-color;
+        color: $darker-text-color;
         text-decoration: none;
         padding: 12px 16px;
         line-height: 32px;
diff --git a/app/lib/activitypub/activity/create.rb b/app/lib/activitypub/activity/create.rb
index ab1d63cd4..010ed1bb5 100644
--- a/app/lib/activitypub/activity/create.rb
+++ b/app/lib/activitypub/activity/create.rb
@@ -80,7 +80,7 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
     hashtag = tag['name'].gsub(/\A#/, '').mb_chars.downcase
     hashtag = Tag.where(name: hashtag).first_or_initialize(name: hashtag)
 
-    status.tags << hashtag
+    status.tags << hashtag unless status.tags.include?(hashtag)
   rescue ActiveRecord::RecordInvalid
     nil
   end
diff --git a/app/serializers/initial_state_serializer.rb b/app/serializers/initial_state_serializer.rb
index eefd853ff..4f2f4e38a 100644
--- a/app/serializers/initial_state_serializer.rb
+++ b/app/serializers/initial_state_serializer.rb
@@ -2,7 +2,7 @@
 
 class InitialStateSerializer < ActiveModel::Serializer
   attributes :meta, :compose, :accounts,
-             :media_attachments, :settings
+             :media_attachments, :settings,
              :max_toot_chars
 
   has_one :push_subscription, serializer: REST::WebPushSubscriptionSerializer