Add a light theme (#7027)

* Add a light theme to Mastodon

This add a second default theme to Mastodon. This new theme is supposed to be a light version of the dark original one.

* Update locales

Update the English and French locales.

* Change capitalization of hexadecimal triplets

Change capitalization of hexadecimal color codes to match Code Climate's recomandation.

* Add variable

Add a new variable to use instead of hardcoding a color. Change made to match Code Climate's recomandation.

* Use Mastodon branding palette

Replace the colors previously used by the ones found in Mastodon branding palette.
The resulting theme is lighter than the previous version.

* Make the overlay background white

Make the overly background used on on sensitive medias white instead of black

* Change the color used on the envelop icon

Change the color used on the envelop icon for a darker one. The same color is now used on both the envelop icon and the padlock icon.

* Add contrast

Add contrast to various places inside the main interface and the profile pages.

* Change the text color used in the compose form

Change the text color used in the compose form for a darker one.

* Make the code easier to read

Add some blank lines to make the code easier to parse for a human eye.

* Change columns' background default colors

Change columns' background default colors, making the composition column the darker one.

* Change the color of the log in button

Change the log in button's text color to make it more readable.

* Fix the color of the boost buttons on the landing page

The disabled boost buttons on the landing page are now of the same color that the other disabled buttons.

* Change the colors used in the dropdown menu

Make the dropdown menu light instead of dark.

4 files changed, 230 insertions, 0 deletions

diff --git a/app/javascript/styles/mastodon-light.scss b/app/javascript/styles/mastodon-light.scss
new file mode 100644
index 000000000..ce9452ff1
--- /dev/null
+++ b/app/javascript/styles/mastodon-light.scss
@@ -0,0 +1,227 @@
+// 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 '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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+  }
+}
+
+button.icon-button.disabled i.fa-retweet {
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.57.2.65.5h-2.43c-.34.05-.53.52-.3.78l3.92 4.95c.18.24.6.24.78 0l3.94-4.94c.22-.27-.02-.76-.37-.77H18.4c.02-3.9.6-3.4-3.66-3.4H7.28c-1.08 0-1.86-.04-2.4-.04zm.15 2.46c-.1.03-.2.1-.28.2l-3.94 4.9c-.2.28.03.77.4.78H3.6c-.02 3.94-.45 3.4 3.66 3.4h7.44c3.65 0 3.74.3 3.7-2.25l-1.1 1.34c-.1.1-.2.17-.32.2-.16 0-.34-.08-.44-.2l-1.65-2.03c-.06.02-.1.04-.18.04H7.28c-.35 0-.57-.2-.66-.5h2.44c.37 0 .63-.5.4-.78l-3.96-4.9c-.1-.15-.3-.23-.47-.2zM4.88 117.6c-1.16 0-1.3.3-1.3 1.56l1.14-1.38c.08-.1.22-.14.34-.16.16 0 .34.04.44.16l2.22 2.75h7c.42 0 .72.28.72.72v.53h-2.6c-.3.1-.43.54-.2.78l3.92 4.9c.18.25.6.25.78 0l3.94-4.9c.22-.28-.02-.77-.37-.78H18.4v-.53c0-4.2.72-3.63-3.66-3.63H7.28c-1.08 0-1.86-.03-2.4-.03zm.1 1.74c-.1.03-.17.1-.23.16L.8 124.44c-.2.28.03.77.4.78H3.6v.5c0 4.26-.55 3.62 3.66 3.62h7.44c1.03 0 1.74.02 2.28 0-.16.02-.34-.03-.44-.15l-2.22-2.76H7.28c-.44 0-.72-.3-.72-.72v-.5h2.5c.37.02.63-.5.4-.78L5.5 119.5c-.12-.15-.34-.22-.53-.16zm12.02 10c1.2-.02 1.4-.25 1.4-1.53l-1.1 1.36c-.07.1-.17.17-.3.18zM5.94 136.6l2.37 2.93h6.42c.42 0 .72.28.72.72v1.25h-2.6c-.3.1-.43.54-.2.78l3.92 4.9c.18.25.6.25.78 0l3.94-4.9c.22-.28-.02-.77-.37-.78H18.4v-1.25c0-4.2.72-3.63-3.66-3.63H7.28c-.6 0-.92-.02-1.34-.03zm-1.72.06c-.4.08-.54.3-.6.75l.6-.74zm.84.93c-.12 0-.24.08-.3.18l-3.95 4.9c-.24.3 0 .83.4.82H3.6v1.22c0 4.26-.55 3.62 3.66 3.62h7.44c.63 0 .97.02 1.4.03l-2.37-2.93H7.28c-.44 0-.72-.3-.72-.72v-1.22h2.5c.4.04.67-.53.4-.8l-3.96-4.92c-.1-.13-.27-.2-.44-.2zm13.28 10.03l-.56.7c.36-.07.5-.3.56-.7zM17.13 155.6c-.55-.02-1.32.03-2.4.03h-8.2l2.38 2.9h5.82c.42 0 .72.28.72.72v1.97H12.9c-.32.06-.48.52-.28.78l3.94 4.94c.2.23.6.22.78-.03l3.94-4.9c.22-.28-.02-.77-.37-.78H18.4v-1.97c0-3.15.4-3.62-1.25-3.66zm-12.1.28c-.1.02-.2.1-.28.18l-3.94 4.9c-.2.3.03.78.4.8H3.6v1.96c0 4.26-.55 3.62 3.66 3.62h8.24l-2.36-2.9H7.28c-.44 0-.72-.3-.72-.72v-1.97h2.5c.37.02.63-.5.4-.78l-3.96-4.9c-.1-.15-.3-.22-.47-.2zM5.13 174.5c-.15 0-.3.07-.38.2L.8 179.6c-.24.27 0 .82.4.8H3.6v2.32c0 4.26-.55 3.62 3.66 3.62h7.94l-2.35-2.9h-5.6c-.43 0-.7-.3-.7-.72v-2.3h2.5c.38.03.66-.54.4-.83l-3.97-4.9c-.1-.13-.23-.2-.38-.2zm12 .1c-.55-.02-1.32.03-2.4.03H6.83l2.35 2.9h5.52c.42 0 .72.28.72.72v2.34h-2.6c-.3.1-.43.53-.2.78l3.92 4.9c.18.24.6.24.78 0l3.94-4.9c.22-.3-.02-.78-.37-.8H18.4v-2.33c0-3.15.4-3.62-1.25-3.66zM4.97 193.16c-.1.03-.17.1-.22.18l-3.94 4.9c-.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-.77l-3.96-4.9c-.12-.17-.34-.25-.53-.2zm12.16.43c-.55-.02-1.32.03-2.4.03H7.1l2.32 2.84.03.06h5.25c.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($ui-highlight-color)}' stroke-width='0'/></svg>");
+}
+
+// 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: $ui-secondary-color;
+  }
+}
+
+// Change the default color of several parts of the compose form
+.compose-form {
+
+  .compose-form__warning {
+    color: lighten($ui-secondary-color, 65%);
+  }
+
+  strong {
+    color: lighten($ui-secondary-color, 65%);
+  }
+
+  .autosuggest-textarea__textarea,
+  .spoiler-input__input {
+
+    color: darken($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;
+    }
+
+  }
+}
diff --git a/config/locales/en.yml b/config/locales/en.yml
index b9429dbee..65b5b1e0b 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -777,6 +777,7 @@ en:
   themes:
     contrast: High contrast
     default: Mastodon
+    mastodon-light: Mastodon (light)
   time:
     formats:
       default: "%b %d, %Y, %H:%M"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 753fd6bd7..cd323b602 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -700,6 +700,7 @@ fr:
   themes:
     contrast: Contraste élevé
     default: Mastodon
+    mastodon-light: Mastodon (clair)
   time:
     formats:
       default: "%d %b %Y, %H:%M"
diff --git a/config/themes.yml b/config/themes.yml
index f0bb1e6f7..9c21c9459 100644
--- a/config/themes.yml
+++ b/config/themes.yml
@@ -1,2 +1,3 @@
 default: styles/application.scss
 contrast: styles/contrast.scss
+mastodon-light: styles/mastodon-light.scss