mastodon/app/javascript/styles/custom.scss

@import 'large_center';
// custom sheet made on https://www.cipherbliss.com
// Commonly used web colors
$black: #fff; // Black
$white: #000; // White
$success-green: #6bbd77 !default; // Padua
$error-red: #d4839b !default; // Cerise
$warning-red: #528dc8 !default; // Sunset Orange
$gold-star: #00ec84 !default; // Dark Goldenrod

// User Interface Colors
$ui-base-color: #313644; // Midnight Express
$ui-base-lighter-color: #bdd2d6;
$ui-primary-color: #a1ccff; // Echo Blue
$ui-secondary-color: #7fc0ff; // Pattens Blue
$ui-highlight-color: #00a7d1; // Summer Sky

// Variables for components
$media-modal-media-max-width: 100%;
// put margins on top and bottom of image to avoid the screen covered by image.
$media-modal-media-max-height: 80%;
// fix

.media-gallery {
  margin-left: -2em;
}

// then we import the rest of the world
@import 'application';
@import 'bliss/messaging';