Overleaf/services/web/public/js/ace/theme/twilight.css

.ace-twilight .ace_gutter {
  background: #232323;
  color: #E2E2E2
}

.ace-twilight .ace_print-margin {
  width: 1px;
  background: #232323
}

.ace-twilight {
  background-color: #141414;
  color: #F8F8F8
}

.ace-twilight .ace_cursor {
  color: #A7A7A7
}

.ace-twilight .ace_marker-layer .ace_selection {
  background: rgba(221, 240, 255, 0.20)
}

.ace-twilight.ace_multiselect .ace_selection.ace_start {
  box-shadow: 0 0 3px 0px #141414;
  border-radius: 2px
}

.ace-twilight .ace_marker-layer .ace_step {
  background: rgb(102, 82, 0)
}

.ace-twilight .ace_marker-layer .ace_bracket {
  margin: -1px 0 0 -1px;
  border: 1px solid rgba(255, 255, 255, 0.25)
}

.ace-twilight .ace_marker-layer .ace_active-line {
  background: rgba(255, 255, 255, 0.031)
}

.ace-twilight .ace_gutter-active-line {
  background-color: rgba(255, 255, 255, 0.031)
}

.ace-twilight .ace_marker-layer .ace_selected-word {
  border: 1px solid rgba(221, 240, 255, 0.20)
}

.ace-twilight .ace_invisible {
  color: rgba(255, 255, 255, 0.25)
}

.ace-twilight .ace_keyword,
.ace-twilight .ace_meta {
  color: #CDA869
}

.ace-twilight .ace_constant,
.ace-twilight .ace_constant.ace_character,
.ace-twilight .ace_constant.ace_character.ace_escape,
.ace-twilight .ace_constant.ace_other,
.ace-twilight .ace_heading,
.ace-twilight .ace_markup.ace_heading,
.ace-twilight .ace_support.ace_constant {
  color: #CF6A4C
}

.ace-twilight .ace_invalid.ace_illegal {
  color: #F8F8F8;
  background-color: rgba(86, 45, 86, 0.75)
}

.ace-twilight .ace_invalid.ace_deprecated {
  text-decoration: underline;
  font-style: italic;
  color: #D2A8A1
}

.ace-twilight .ace_support {
  color: #9B859D
}

.ace-twilight .ace_fold {
  background-color: #AC885B;
  border-color: #F8F8F8
}

.ace-twilight .ace_support.ace_function {
  color: #DAD085
}

.ace-twilight .ace_list,
.ace-twilight .ace_markup.ace_list,
.ace-twilight .ace_storage {
  color: #F9EE98
}

.ace-twilight .ace_entity.ace_name.ace_function,
.ace-twilight .ace_meta.ace_tag,
.ace-twilight .ace_variable {
  color: #AC885B
}

.ace-twilight .ace_string {
  color: #8F9D6A
}

.ace-twilight .ace_string.ace_regexp {
  color: #E9C062
}

.ace-twilight .ace_comment {
  font-style: italic;
  color: #5F5A60
}

.ace-twilight .ace_variable {
  color: #7587A6
}

.ace-twilight .ace_xml-pe {
  color: #494949
}

.ace-twilight .ace_indent-guide {
  background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAACCAYAAACZgbYnAAAAEklEQVQImWMQERFpYLC1tf0PAAgOAnPnhxyiAAAAAElFTkSuQmCC) right repeat-y
}