Monterey Mailspring theme
A macOS Monterey-inspired theme for the Mailspring email client.
Installing this theme
Download the theme as a Zip file:
https://github.com/zarino/monterey-mailspring-theme/archive/refs/heads/master.zip
Unpack the Zip file, and place the monterey-mailspring-theme folder into the Mailspring Packages folder for your system:
| OS | Location |
|---|---|
| macOS | ~/Library/Application Support/Mailspring/packages/ |
| Ubuntu native | ~/.config/Mailspring/packages/ |
| Ubuntu Snap | ~/snap/mailspring/common/packages/ |
| Windows | %appdata%\Mailspring\packages\ |
(Note this theme is not actively supported on operating systems other than macOS.)
Start Mailspring, and choose “Monterey” from the Mailspring > Install Theme… window.
Developing this theme
Git clone the repo.
git clone https://github.com/zarino/monterey-mailspring-theme.git
Install the theme:
script/install
If you’re working on a debug version of Mailspring (with Developer > Run with Debug Flags) then you’ll want to run the install script with the --dev flag instead:
script/install --dev
Start Mailspring, and choose “Monterey” from the Mailspring > Install Theme… window.
If you ever want to uninstall the theme, you can run script/uninstall or script/uninstall --dev.
Accessing the underlying theme variables
Mailspring themes are applied on top of the base, built-in styles. You can browse the base ui-variables.less here:
https://github.com/Foundry376/Mailspring/tree/master/app/static/style/base
But beyond that, the base styles are spread between the app’s “components” directory:
https://github.com/Foundry376/Mailspring/tree/master/app/static/style/components
And the various “internal packages” that make up the various features within the app, for example:
https://github.com/Foundry376/Mailspring/blob/master/app/internal_packages/account-sidebar/styles/account-sidebar.less https://github.com/Foundry376/Mailspring/blob/master/app/internal_packages/composer/styles/composer.less https://github.com/Foundry376/Mailspring/blob/master/app/internal_packages/notifications/styles/styles.less https://github.com/Foundry376/Mailspring/blob/master/app/internal_packages/thread-list/styles/thread-list.less