thunderbird css

userChrome.css

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

* {
    font-family: "UDEV Gothic" !important;
}

/* ------------------------------
    folder pane
------------------------------ */

/* height of row */
#folderTree treechildren::-moz-tree-row {
    font-size: 12px;
}
#folderTree treechildren::-moz-tree-cell-text {
    color: #5e5e5e !important;
}
/* color of current folder */
#folderTree treechildren::-moz-tree-row(current) {
    background-color: #63b1f1 !important;
}
/* color of unread folder */
#folderTree treechildren::-moz-tree-cell-text(hasUnreadMessages-true) {
    color: #194357 !important;
}


/* draft folder */
#folderTree treechildren::-moz-tree-cell-text(folderNameCol, specialFolder-Drafts, hasUnreadMessages-true) {
    color: #aaa !important;
    font-weight: normal !important;
}

/* local folder */
#folderTree treechildren::-moz-tree-image(folderNameCol, specialFolder-none, isServer-true, serverType-none) {
    fill: #c9c9c9 !important;
}
#folderTree treechildren::-moz-tree-cell-text(folderNameCol, serverType-none) {
    /*
        http://forums.mozillazine.org/viewtopic.php?f=39&t=2875895
        https://forums.mozillazine.jp/viewtopic.php?t=19697&p=71772
        https://support.mozilla.org/gu-IN/questions/1309818
    */
    color: #b7b7b7 !important;
}

/* ------------------------------
    message-list pane
------------------------------ */

#threadTree treechildren::-moz-tree-cell-text {
    color: #5e5e5e !important;
}
#threadTree treechildren::-moz-tree-row {
    font-size: 14px !important;
    border: none !important;
}
#threadTree treechildren::-moz-tree-row(odd) {
    background-color: #eaeaea !important;
}


/* selected message */
#threadTree treechildren::-moz-tree-row(hover) {
    background-color: #e5f2f5 !important;
}
#threadTree treechildren::-moz-tree-row(selected) {
    background-color: #d1e1e4 !important;
}
#threadTree treechildren::-moz-tree-row(hover) {
    border-top: 1px dashed #194357 !important;
    border-bottom: 1px dashed #194357 !important;
}
#threadTree treechildren::-moz-tree-row(selected) {
    border-top: 1px solid #3f7d9a !important;
    border-bottom: 1px solid #3f7d9a !important;
}

/* unread message */
#threadTree treechildren::-moz-tree-cell-text(unread),
#threadTree treechildren::-moz-tree-cell-text(container, closed, hasUnread, read) {
    color: #194357 !important;
}

/* ------------------------------
    preview pane
------------------------------ */

#attachment-view-toolbar,
#attachmentList,
#attachmentList * {
    background-color: #ffea00 !important;
    color: #123456 !important;
}


#expandedHeadersBottomBox {
    min-height: 60px!important;
}

/* ------------------------------
    threadvis
------------------------------ */

#ThreadVis {
    height: 45px !important;
}

userContent.css

/*
  message window
*/
* {
  font-family: "UDEV Gothic" !important;
}


body {
  border: 1px solid #aaa;
  padding: 4px;
  font-size: 14px;
  background-color: #eaeaea !important;
  color: #073642 !important;
  line-height: 1.25 !important;
}
a {
  color: #268bd2;
}


/*
  quote message color
*/
blockquote, span[_moz_quote=true] {
  color: #b58900 !important;
}