maputnik/src/codemirror-maputnik.css

.cm-s-maputnik.CodeMirror {
  height: 100%;
  font-size: 12px;
}

.cm-s-maputnik.CodeMirror, .cm-s-maputnik .CodeMirror-gutters {
  color: #8e8e8e;
  border: none;
}

.cm-s-maputnik.CodeMirror {
  background: transparent;
}

.cm-s-maputnik .CodeMirror-gutters {
  background: #212328;
}

.cm-s-maputnik .CodeMirror-cursor {
    border-left: solid thin #8e8e8e !important;
}

.cm-s-maputnik.CodeMirror-focused div.CodeMirror-selected {
  background: rgba(255, 255, 255, 0.10);
}

.cm-s-maputnik .CodeMirror-line::selection,
.cm-s-maputnik .CodeMirror-line > span::selection,
.cm-s-maputnik .CodeMirror-line > span > span::selection {
  background: rgba(255, 255, 255, 0.10);
}

.cm-s-maputnik .CodeMirror-line::-moz-selection,
.cm-s-maputnik .CodeMirror-line > span::-moz-selection,
.cm-s-maputnik .CodeMirror-line > span > span::-moz-selection {
  background: rgba(255, 255, 255, 0.10);
}

.cm-s-maputnik span.cm-string, .cm-s-maputnik span.cm-string-2 {
  color: #8f9d6a;
}
.cm-s-maputnik span.cm-number { color: #91675f; }
.cm-s-maputnik span.cm-property { color: #b8a077; }

.cm-s-maputnik .CodeMirror-activeline-background {
  background: rgba(255,255,255,0.1);
}

.cm-s-maputnik .CodeMirror-matchingbracket {
  text-decoration: underline; color: white !important;
}