【Thunderbird】タイトルの色を分かりやすくつける

※この記事を書いた時点でのバージョンは3.1です。(Mac OX 10.6.7)

Thunderbirdはフリーとは思えないほど優れたメーラーですが、タイトルに色(タグ)をつけても、文字に色がつくだけでちょっと見にくいのが難点でした。
そこで、発見した「色を文字ではなく背景につけて見やすくする方法」を書きたいと思います。

1)まず、以下でStylishというアドオンをダウンロードします。
https://addons.mozilla.org/ja/thunderbird/addon/stylish/

2)これはダウンロードしただけでは使えないので、アドオンからThunderbirdにインストールします。
ツール>アドオン(左下)インストール>1でダウンロードしたファイルを指定

3)アドオンのStylishから設定する
アドオンにStylishが入りますので「設定」のボタンをクリックします。

4)(右下)「新しいスタイルを書く」をクリック

5)名前にuserContent.cssと記入。タグは空欄で構わないです。大きなテキストボックスに以下の内容をコピペして保存して下さい。
/*ここから*/
/*
* TwisterMc’s Labels (1,2) – Full set by The-Daily-Poll (Rassi) (3)
* (1) http://www.twistermc.com/blog/2007/04/10/thunderbird-labels
* (2) http://www.twistermc.com/blog/2007/05/02/custom-thunderbird-labels
* (3) http://the-daily-poll.com/wp-content/uploads/2007/05/complete_twistedmc_labels.txt
*/

treechildren::-moz-tree-cell(lc-FFFFFF) { border-bottom:1px solid #FFFFFF !important; background-color: #FFFFFF !important;}
treechildren::-moz-tree-cell-text(lc-FFFFFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFFFFF, selected) { background-color: #FFFFFF !important; }
treechildren::-moz-tree-cell-text(lc-FFFFFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFCCCC) { border-bottom:1px solid #FFCCCC !important; background-color: #FFE6E6 !important;}
treechildren::-moz-tree-cell-text(lc-FFCCCC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFCCCC, selected) { background-color: #FFCCCC !important; }
treechildren::-moz-tree-cell-text(lc-FFCCCC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFCC99) { border-bottom:1px solid #FFCC99 !important; background-color: #FFE6CC !important;}
treechildren::-moz-tree-cell-text(lc-FFCC99) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFCC99, selected) { background-color: #FFCC99 !important; }
treechildren::-moz-tree-cell-text(lc-FFCC99, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFFF99) { border-bottom:1px solid #FFFF99 !important; background-color: #99FF99 !important;}
treechildren::-moz-tree-cell-text(lc-FFFF99) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFFF99, selected) { background-color: #FFFF99 !important; }
treechildren::-moz-tree-cell-text(lc-FFFF99, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFFFCC) { border-bottom:1px solid #FFFFCC !important; background-color: #FFFFE6 !important;}
treechildren::-moz-tree-cell-text(lc-FFFFCC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFFFCC, selected) { background-color: #FFFFCC !important; }
treechildren::-moz-tree-cell-text(lc-FFFFCC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-99FF99) { border-bottom:1px solid #99FF99 !important; background-color: #CCFFCC !important;}
treechildren::-moz-tree-cell-text(lc-99FF99) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-99FF99, selected) { background-color: #99FF99 !important; }
treechildren::-moz-tree-cell-text(lc-99FF99, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-99FFFF) { border-bottom:1px solid #99FFFF !important; background-color: #CCFFFF !important;}
treechildren::-moz-tree-cell-text(lc-99FFFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-99FFFF, selected) { background-color: #99FFFF !important; }
treechildren::-moz-tree-cell-text(lc-99FFFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CCFFFF) { border-bottom:1px solid #CCFFFF !important; background-color: #FFCC99 !important;}
treechildren::-moz-tree-cell-text(lc-CCFFFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CCFFFF, selected) { background-color: #CCFFFF !important; }
treechildren::-moz-tree-cell-text(lc-CCFFFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF9900) { border-bottom:1px solid #FF9900 !important; background-color: #E6FFFF !important;}
treechildren::-moz-tree-cell-text(lc-FF9900) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF9900, selected) { background-color: #FF9900 !important; }
treechildren::-moz-tree-cell-text(lc-FF9900, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CCCCFF) { border-bottom:1px solid #CCCCFF !important; background-color: #E6E6FF !important;}
treechildren::-moz-tree-cell-text(lc-CCCCFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CCCCFF, selected) { background-color: #CCCCFF !important; }
treechildren::-moz-tree-cell-text(lc-CCCCFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFCCFF) { border-bottom:1px solid #FFCCFF !important; background-color: #FFE6FF !important;}
treechildren::-moz-tree-cell-text(lc-FFCCFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFCCFF, selected) { background-color: #FFCCFF !important; }
treechildren::-moz-tree-cell-text(lc-FFCCFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CCCCCC) { border-bottom:1px solid #CCCCCC !important; background-color: #E6E6E6 !important;}
treechildren::-moz-tree-cell-text(lc-CCCCCC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CCCCCC, selected) { background-color: #CCCCCC !important; }
treechildren::-moz-tree-cell-text(lc-CCCCCC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF6666) { border-bottom:1px solid #FF6666 !important; background-color: #FFB3B3 !important;}
treechildren::-moz-tree-cell-text(lc-FF6666) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF6666, selected) { background-color: #FF6666 !important; }
treechildren::-moz-tree-cell-text(lc-FF6666, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF9966) { border-bottom:1px solid #FF9966 !important; background-color: #FFCCB3 !important;}
treechildren::-moz-tree-cell-text(lc-FF9966) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF9966, selected) { background-color: #FF9966 !important; }
treechildren::-moz-tree-cell-text(lc-FF9966, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFFF66) { border-bottom:1px solid #FFFF66 !important; background-color: #FFFFB3 !important;}
treechildren::-moz-tree-cell-text(lc-FFFF66) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFFF66, selected) { background-color: #FFFF66 !important; }
treechildren::-moz-tree-cell-text(lc-FFFF66, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFFF33) { border-bottom:1px solid #FFFF33 !important; background-color: #FFFF99 !important;}
treechildren::-moz-tree-cell-text(lc-FFFF33) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFFF33, selected) { background-color: #FFFF33 !important; }
treechildren::-moz-tree-cell-text(lc-FFFF33, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-66FF99) { border-bottom:1px solid #66FF99 !important; background-color: #B3FFCC !important;}
treechildren::-moz-tree-cell-text(lc-66FF99) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-66FF99, selected) { background-color: #66FF99 !important; }
treechildren::-moz-tree-cell-text(lc-66FF99, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-33FFFF) { border-bottom:1px solid #33FFFF !important; background-color: #99FFFF !important;}
treechildren::-moz-tree-cell-text(lc-33FFFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-33FFFF, selected) { background-color: #33FFFF !important; }
treechildren::-moz-tree-cell-text(lc-33FFFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-66FFFF) { border-bottom:1px solid #66FFFF !important; background-color: #B3FFFF !important;}
treechildren::-moz-tree-cell-text(lc-66FFFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-66FFFF, selected) { background-color: #66FFFF !important; }
treechildren::-moz-tree-cell-text(lc-66FFFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-9999FF) { border-bottom:1px solid #9999FF !important; background-color: #CCCCFF !important;}
treechildren::-moz-tree-cell-text(lc-9999FF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-9999FF, selected) { background-color: #9999FF !important; }
treechildren::-moz-tree-cell-text(lc-9999FF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF99FF) { border-bottom:1px solid #FF99FF !important; background-color: #FFCCFF !important;}
treechildren::-moz-tree-cell-text(lc-FF99FF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF99FF, selected) { background-color: #FF99FF !important; }
treechildren::-moz-tree-cell-text(lc-FF99FF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-C0C0C0) { border-bottom:1px solid #C0C0C0 !important; background-color: #E0E0E0 !important;}
treechildren::-moz-tree-cell-text(lc-C0C0C0) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-C0C0C0, selected) { background-color: #C0C0C0 !important; }
treechildren::-moz-tree-cell-text(lc-C0C0C0, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF0000) { border-bottom:1px solid #FF0000 !important; background-color: #FF8080 !important;}
treechildren::-moz-tree-cell-text(lc-FF0000) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF0000, selected) { background-color: #FF0000 !important; }
treechildren::-moz-tree-cell-text(lc-FF0000, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF9900) { border-bottom:1px solid #FF9900 !important; background-color: #FFCC80 !important;}
treechildren::-moz-tree-cell-text(lc-FF9900) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF9900, selected) { background-color: #FF9900 !important; }
treechildren::-moz-tree-cell-text(lc-FF9900, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFCC66) { border-bottom:1px solid #FFCC66 !important; background-color: #FFE6B3 !important;}
treechildren::-moz-tree-cell-text(lc-FFCC66) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFCC66, selected) { background-color: #FFCC66 !important; }
treechildren::-moz-tree-cell-text(lc-FFCC66, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFFF00) { border-bottom:1px solid #FFFF00 !important; background-color: #FFFF80 !important;}
treechildren::-moz-tree-cell-text(lc-FFFF00) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFFF00, selected) { background-color: #FFFF00 !important; }
treechildren::-moz-tree-cell-text(lc-FFFF00, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-33FF33) { border-bottom:1px solid #33FF33 !important; background-color: #99FF99 !important;}
treechildren::-moz-tree-cell-text(lc-33FF33) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-33FF33, selected) { background-color: #33FF33 !important; }
treechildren::-moz-tree-cell-text(lc-33FF33, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-66CCCC) { border-bottom:1px solid #66CCCC !important; background-color: #B3E6E6 !important;}
treechildren::-moz-tree-cell-text(lc-66CCCC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-66CCCC, selected) { background-color: #66CCCC !important; }
treechildren::-moz-tree-cell-text(lc-66CCCC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-33CCFF) { border-bottom:1px solid #33CCFF !important; background-color: #99E6FF !important;}
treechildren::-moz-tree-cell-text(lc-33CCFF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-33CCFF, selected) { background-color: #33CCFF !important; }
treechildren::-moz-tree-cell-text(lc-33CCFF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-6666CC) { border-bottom:1px solid #6666CC !important; background-color: #B3B3E6 !important;}
treechildren::-moz-tree-cell-text(lc-6666CC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-6666CC, selected) { background-color: #6666CC !important; }
treechildren::-moz-tree-cell-text(lc-6666CC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CC66CC) { border-bottom:1px solid #CC66CC !important; background-color: #E6B3E6 !important;}
treechildren::-moz-tree-cell-text(lc-CC66CC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CC66CC, selected) { background-color: #CC66CC !important; }
treechildren::-moz-tree-cell-text(lc-CC66CC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-999999) { border-bottom:1px solid #999999 !important; background-color: #CCCCCC !important;}
treechildren::-moz-tree-cell-text(lc-999999) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-999999, selected) { background-color: #999999 !important; }
treechildren::-moz-tree-cell-text(lc-999999, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CC0000) { border-bottom:1px solid #999999 !important; background-color: #E68080 !important;}
treechildren::-moz-tree-cell-text(lc-CC0000) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CC0000, selected) { background-color: #CC0000 !important; }
treechildren::-moz-tree-cell-text(lc-CC0000, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FF6600) { border-bottom:1px solid #CC0000 !important; background-color: #FFB380 !important;}
treechildren::-moz-tree-cell-text(lc-FF6600) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FF6600, selected) { background-color: #FF6600 !important; }
treechildren::-moz-tree-cell-text(lc-FF6600, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFCC33) { border-bottom:1px solid #FFCC33 !important; background-color: #FFE699 !important;}
treechildren::-moz-tree-cell-text(lc-FFCC33) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFCC33, selected) { background-color: #FFCC33 !important; }
treechildren::-moz-tree-cell-text(lc-FFCC33, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-FFCC00) { border-bottom:1px solid #FFCC00 !important; background-color: #FFE680 !important;}
treechildren::-moz-tree-cell-text(lc-FFCC00) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-FFCC00, selected) { background-color: #FFCC00 !important; }
treechildren::-moz-tree-cell-text(lc-FFCC00, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-33CC00) { border-bottom:1px solid #33CC00 !important; background-color: #99E680 !important;}
treechildren::-moz-tree-cell-text(lc-33CC00) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-33CC00, selected) { background-color: #33CC00 !important; }
treechildren::-moz-tree-cell-text(lc-33CC00, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-00CCCC) { border-bottom:1px solid #00CCCC !important; background-color: #80E6E6 !important;}
treechildren::-moz-tree-cell-text(lc-00CCCC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-00CCCC, selected) { background-color: #00CCCC !important; }
treechildren::-moz-tree-cell-text(lc-00CCCC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-3366FF) { border-bottom:1px solid #3366FF !important; background-color: #99B3FF !important;}
treechildren::-moz-tree-cell-text(lc-3366FF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-3366FF, selected) { background-color: #3366FF !important; }
treechildren::-moz-tree-cell-text(lc-3366FF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-6633FF) { border-bottom:1px solid #6633FF !important; background-color: #B399FF !important;}
treechildren::-moz-tree-cell-text(lc-6633FF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-6633FF, selected) { background-color: #6633FF !important; }
treechildren::-moz-tree-cell-text(lc-6633FF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-B399FF) { border-bottom:1px solid #B399FF !important; background-color: #E699E6 !important;}
treechildren::-moz-tree-cell-text(lc-B399FF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-B399FF, selected) { background-color: #B399FF !important; }
treechildren::-moz-tree-cell-text(lc-B399FF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-666666) { border-bottom:1px solid #666666 !important; background-color: #B3B3B3 !important;}
treechildren::-moz-tree-cell-text(lc-666666) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-666666, selected) { background-color: #666666 !important; }
treechildren::-moz-tree-cell-text(lc-666666, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-990000) { border-bottom:1px solid #990000 !important; background-color: #CC8080 !important;}
treechildren::-moz-tree-cell-text(lc-990000) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-990000, selected) { background-color: #990000 !important; }
treechildren::-moz-tree-cell-text(lc-990000, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CC6600) { border-bottom:1px solid #CC6600 !important; background-color: #E6B380 !important;}
treechildren::-moz-tree-cell-text(lc-CC6600) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CC6600, selected) { background-color: #CC6600 !important; }
treechildren::-moz-tree-cell-text(lc-CC6600, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-CC9933) { border-bottom:1px solid #CC9933 !important; background-color: #E6CC99 !important;}
treechildren::-moz-tree-cell-text(lc-CC9933) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-CC9933, selected) { background-color: #CC9933 !important; }
treechildren::-moz-tree-cell-text(lc-CC9933, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-999900) { border-bottom:1px solid #999900 !important; background-color: #CCCC80 !important;}
treechildren::-moz-tree-cell-text(lc-999900) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-999900, selected) { background-color: #999900 !important; }
treechildren::-moz-tree-cell-text(lc-999900, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-009900) { border-bottom:1px solid #009900 !important; background-color: #80CC80 !important;}
treechildren::-moz-tree-cell-text(lc-009900) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-009900, selected) { background-color: #009900 !important; }
treechildren::-moz-tree-cell-text(lc-009900, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-339999) { border-bottom:1px solid #339999 !important; background-color: #99CCCC !important;}
treechildren::-moz-tree-cell-text(lc-339999) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-339999, selected) { background-color: #339999 !important; }
treechildren::-moz-tree-cell-text(lc-339999, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-3333FF) { border-bottom:1px solid #3333FF !important; background-color: #99CCCC !important;}
treechildren::-moz-tree-cell-text(lc-3333FF) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-3333FF, selected) { background-color: #3333FF !important; }
treechildren::-moz-tree-cell-text(lc-3333FF, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-6600CC) { border-bottom:1px solid #6600CC !important; background-color: #99CCCC !important;}
treechildren::-moz-tree-cell-text(lc-6600CC) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-6600CC, selected) { background-color: #6600CC !important; }
treechildren::-moz-tree-cell-text(lc-6600CC, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-993399) { border-bottom:1px solid #993399 !important; background-color: #CC99CC !important;}
treechildren::-moz-tree-cell-text(lc-993399) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-993399, selected) { background-color: #993399 !important; }
treechildren::-moz-tree-cell-text(lc-993399, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-333333) { border-bottom:1px solid #333333 !important; background-color: #999999 !important;}
treechildren::-moz-tree-cell-text(lc-333333) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-333333, selected) { background-color: #333333 !important; }
treechildren::-moz-tree-cell-text(lc-333333, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-660000) { border-bottom:1px solid #660000 !important; background-color: #B38080 !important;}
treechildren::-moz-tree-cell-text(lc-660000) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-660000, selected) { background-color: #660000 !important; }
treechildren::-moz-tree-cell-text(lc-660000, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-993300) { border-bottom:1px solid #993300 !important; background-color: #CC9980 !important;}
treechildren::-moz-tree-cell-text(lc-993300) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-993300, selected) { background-color: #993300 !important; }
treechildren::-moz-tree-cell-text(lc-993300, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-996633) { border-bottom:1px solid #996633 !important; background-color: #CC9980 !important;}
treechildren::-moz-tree-cell-text(lc-996633) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-996633, selected) { background-color: #996633 !important; }
treechildren::-moz-tree-cell-text(lc-996633, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-666600) { border-bottom:1px solid #666600 !important; background-color: #CCB399 !important;}
treechildren::-moz-tree-cell-text(lc-666600) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-666600, selected) { background-color: #666600 !important; }
treechildren::-moz-tree-cell-text(lc-666600, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-006600) { border-bottom:1px solid #006600 !important; background-color: #80B380 !important;}
treechildren::-moz-tree-cell-text(lc-006600) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-006600, selected) { background-color: #006600 !important; }
treechildren::-moz-tree-cell-text(lc-006600, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-336666) { border-bottom:1px solid #336666 !important; background-color: #99B3B3 !important;}
treechildren::-moz-tree-cell-text(lc-336666) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-336666, selected) { background-color: #336666 !important; }
treechildren::-moz-tree-cell-text(lc-336666, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-000099) { border-bottom:1px solid #000099 !important; background-color: #8080CC !important;}
treechildren::-moz-tree-cell-text(lc-000099) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-000099, selected) { background-color: #000099 !important; }
treechildren::-moz-tree-cell-text(lc-000099, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-333399) { border-bottom:1px solid #333399 !important; background-color: #9999CC !important;}
treechildren::-moz-tree-cell-text(lc-333399) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-333399, selected) { background-color: #333399 !important; }
treechildren::-moz-tree-cell-text(lc-333399, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-663366) { border-bottom:1px solid #663366 !important; background-color: #B399B3 !important;}
treechildren::-moz-tree-cell-text(lc-663366) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-663366, selected) { background-color: #663366 !important; }
treechildren::-moz-tree-cell-text(lc-663366, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-000000) { border-bottom:1px solid #000000 !important; background-color: #808080 !important;}
treechildren::-moz-tree-cell-text(lc-000000) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-000000, selected) { background-color: #000000 !important; }
treechildren::-moz-tree-cell-text(lc-000000, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-330000) { border-bottom:1px solid #330000 !important; background-color: #998080 !important;}
treechildren::-moz-tree-cell-text(lc-330000) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-330000, selected) { background-color: #330000 !important; }
treechildren::-moz-tree-cell-text(lc-330000, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-663300) { border-bottom:1px solid #663300 !important; background-color: #B39980 !important;}
treechildren::-moz-tree-cell-text(lc-663300) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-663300, selected) { background-color: #663300 !important; }
treechildren::-moz-tree-cell-text(lc-663300, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-663333) { border-bottom:1px solid #663333 !important; background-color: #B39999 !important;}
treechildren::-moz-tree-cell-text(lc-663333) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-663333, selected) { background-color: #663333 !important; }
treechildren::-moz-tree-cell-text(lc-663333, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-333300) { border-bottom:1px solid #333300 !important; background-color: #999980 !important;}
treechildren::-moz-tree-cell-text(lc-333300) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-333300, selected) { background-color: #333300 !important; }
treechildren::-moz-tree-cell-text(lc-333300, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-003300) { border-bottom:1px solid #003300 !important; background-color: #809980 !important;}
treechildren::-moz-tree-cell-text(lc-003300) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-003300, selected) { background-color: #003300 !important; }
treechildren::-moz-tree-cell-text(lc-003300, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-003333) { border-bottom:1px solid #003333 !important; background-color: #809999 !important;}
treechildren::-moz-tree-cell-text(lc-003333) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-003333, selected) { background-color: #003333 !important; }
treechildren::-moz-tree-cell-text(lc-003333, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-000066) { border-bottom:1px solid #000066 !important; background-color: #8080B3 !important;}
treechildren::-moz-tree-cell-text(lc-000066) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-000066, selected) { background-color: #000066 !important; }
treechildren::-moz-tree-cell-text(lc-000066, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-330099) { border-bottom:1px solid #330099 !important; background-color: #9980CC !important;}
treechildren::-moz-tree-cell-text(lc-330099) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-330099, selected) { background-color: #330099 !important; }
treechildren::-moz-tree-cell-text(lc-330099, selected) { color: #FFF !important; }

treechildren::-moz-tree-cell(lc-330033) { border-bottom:1px solid #330033 !important; background-color: #998099 !important;}
treechildren::-moz-tree-cell-text(lc-330033) { color: #000 !important; }
treechildren::-moz-tree-cell(lc-330033, selected) { background-color: #330033 !important; }
treechildren::-moz-tree-cell-text(lc-330033, selected) { color: #FFF !important; }
/*ここまで*/

そうしてThunderbirdを立ち上げ直すと以下のようになります!!