Ciao, effettivamente il pacchetto master non è più scaricabile. Ho provato anche gli altri temi presenti nel file GitHub, ma nessuno funziona correttamente.
Questo il codice di lightred:
/*Copyright (C) 2017 Matthew Richardson
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Huge thanks to the following for their inspiration/guidance:
* http://www.linnhe2.free-online.co.uk/thunderbird/chrome.html - For a very comprehensive guide to userChrome.css
* https://monterail.com/blog/2016/the-power-of-email-clients-why-did-we-redesign-thunderbird?utm_source=Thunderbird&utm_campaign=Dribbble&utm_medium=blogpost%22 - For the initial inspiration to do this
* http://www.omgubuntu.co.uk/2017/04/stunning-thunderbird-redesign-mockup - For alerting me to the beautiful mockup by monterail.com
*/
@import "_base.css";
@import "../tweaks/square-tabs.css";
@import "../icons/darkIcons.css"; /*For dark Folder Tree, with a light Message List*/
@import "../tweaks/tag.css";
/**** Variables: Uncomment and Edit these for easy customisation ****/
:root {
/*---- General Options ----*/
--light-color: #EFF0F1;
--light-text-color: #191919;
--light-white-background: white;
--light-light-background: var(--light-color);
--light-light-text-color: var(--light-text-color);
/*** Set active tab background color: ***/
--fgTabBackgroundColor: var(--light-light-background) !important;
--menu-text-color: var(--light-text-color);
/*** These highlight colors are used if more specific ones aren't specified below ***/
--highlight-color: #FE3123;
--highlight-text-color: #FFFFFF;
/*---- Tree Views (Folder Tree/Message List) General Options ----*/
--tree-row-highlight-background-color: var(--highlight-color) !important;
--tree-row-highlight-text-color: var(--highlight-text-color);
/*---- Folder Tree ----*/
--folder-tree-background-color: var(--light-color) !important;
--folder-tree-text-color: var(--light-text-color);
--folder-tree-row-height: 25px;
--folder-tree-highlight-background-color: var(--highlight-color);
--folder-tree-highlight-text-color: var(--highlight-text-color);
/*---- Message List ----*/
--message-list-header-background-color: var(--light-light-background) !important;
--message-list-header-text-color: var(--light-light-text-color) !important;
--message-list-background-color: var(--light-white-background) !important;
--message-list-text-color: var(--light-light-text-color) !important;
--message-list-row-height: 40px;
--message-list-highlight-background-color: var(--tree-row-highlight-background-color) !important;
--message-list-highlight-text-color: var(--tree-row-highlight-text-color) !important;
/*---- Scollbar ----*/
--scrollbar-thumb-color: rgba(25,25,25,0.3);
--scrollbar-thumb-hover-color: var(--highlight-color);
/*---- Message Headers (To/Subject/From etc) ----*/
--subject-line-font-size: 120%;
--headers-background-color: var(--light-light-background);
--headers-text-color: var(--light-light-text-color);
}
/******************************************************/
@media(-moz-windows-glass: 0) {
#navigation-toolbox {
-moz-appearance: none !important;
background: var(--light-color) !important;
}
}
#compose-toolbox, #compose-toolbox > *, #ab-toolbox {
-moz-appearance: none !important;
background: var(--light-color) !important;
}
.tabmail-tab[selected="true"] .tab-content {
background: var(--light-light-background) !important;
}
.tabmail-tab[selected="true"] .tab-content * {
color: var(--light-light-text-color) !important;
}
menu label, menuitem label, .splitmenu-menuitem label, menucaption label,
.chromeclass-toolbar menu label, .chromeclass-toolbar menuitem label, .chromeclass-toolbar .splitmenu-menuitem label, .chromeclass-toolbar menucaption label {
color: var(--light-light-text-color) !important;
}
menupopup {
-moz-appearance: none !important;
background: var(--light-light-background) !important;
}
menuseparator {
-moz-appearance: none !important;
background: var(--light-text-color) !important;
border-bottom-width: 1px !important;
border-bottom-color: lightgrey !important;
border-bottom-style: solid !important;
}
#appmenuSecondaryPane {
border-left-color: lightgrey !important;
}
.mail-toolbox {
-moz-appearance: none !important;
background: var(--light-light-background) !important;
}
.mail-toolbox .chromeclass-toolbar, .mail-toolbox .chromeclass-toolbar > *, .mail-toolbox .chromeclass-toolbar .toolbarbutton-text {
color: var(--light-light-text-color) !important;
}
#mail-toolbox {
border: none !important;
border-bottom: 1px solid rgba(25,25,25,0.2) !important;
}