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🎄 md-editor-v3

English | 中文

Markdown editor for vue3, developed in jsx and typescript.

  • Documentation and example: Go

  • Use it online: Go

  • The same series editor for react: md-editor-rt

⭐️ Features

  • Toolbar, screenfull or screenfull in web pages and so on.
  • Themes, Built-in default and dark themes.
  • Shortcut key for editor.
  • Beautify your content by prettier(only for markdown content, not the code and other text).
  • Multi-language, build-in Chinese and English(default: Chinese).
  • Upload picture, paste or clip the picture and upload it.
  • Render article directly(no editor, no event listener, only preview of content).
  • Theme of preview, default, vuepress, github, cyanosis, mk-cute, smart-blue styles(not identical). It can be customized also(Refer to example page).
  • mermaid(>=1.8.0), katex mathematical formula(>=1.9.0).
  • Customize the toolbar as you like.
  • On-demand Import(>=4.0.0).

📦 Install

yarn add md-editor-v3

Use existing extension of language and theme, such as Japanese

yarn add @vavt/cm-extension

Use existing components of toolbar, such as exporting content as PDF

yarn add @vavt/v3-extension

For more ways to use or contribute, please refer to: md-editor-extension

💡 Usage

When using server-side rendering, make sure to set editorId to a constant value.

Starting from 4.0.0, internal components can be imported on-demand.

✍🏻 Display Editor

<template>
  <MdEditor v-model="text" />
</template>

<script setup>
import { ref } from 'vue';
import { MdEditor } from 'md-editor-v3';
import 'md-editor-v3/lib/style.css';

const text = ref('# Hello Editor');
</script>

📖 Preview Only

<template>
  <MdPreview :editorId="id" :modelValue="text" />
  <MdCatalog :editorId="id" :scrollElement="scrollElement" />
</template>

<script setup>
import { ref } from 'vue';
import { MdPreview, MdCatalog } from 'md-editor-v3';
import 'md-editor-v3/lib/preview.css';

const id = 'preview-only';
const text = ref('# Hello Editor');
const scrollElement = document.documentElement;
</script>

When using server-side rendering, scrollElement should be of string type, eg: body, #id, .class.

🗺 Preview

Default theme Dark theme Preview only

Inputing prompt and mark, emoji extensions

🎁 Apis

🔖 MdPreivew Props

name type default description
modelValue string '' Markdown content, use v-model in vue template
theme 'light' | 'dark' 'light' Editor theme
class string ''
style string | CSSProperties {} Inline style
language string 'zh-CN' Build-in language('zh-CN','en-US')
editorId string 'md-editor-v3_[\d]' Editor's id, default incrementing by number. When using server-side rendering, make sure to set this attribute to a constant value
showCodeRowNumber boolean true Show row number for code block or not
previewTheme 'default' | 'github' | 'vuepress' | 'mk-cute' | 'smart-blue' | 'cyanosis' 'default' Theme of preview, can be customized
noMermaid boolean false Use mermaid or not
noKatex boolean false Use katex or not
codeTheme 'atom' | 'a11y' | 'github' | 'gradient' | 'kimbie' | 'paraiso' | 'qtcreator' | 'stackoverflow' 'atom' Highlight code style, can be customized also
mdHeadingId (text: string, level: number, index: number) => string (text) => text H1-H6 ID generator
sanitize (html: string) => string (html) => html This attribute is used to alter the compiled HTML content
noIconfont boolean false Not append iconfont script, you can get the latest link here
formatCopiedText (text: string) => string (text: string) => text Format copied code
codeStyleReverse boolean true Code style will be reversed to dark while code block of the theme has a dark background
codeStyleReverseList Array<string> ['default', 'mk-cute'] Themes to be reversed
noHighlight boolean false Highlight code or not
noImgZoomIn boolean false Enable the function of enlarging images
customIcon CustomIcon {} Customized icons
sanitizeMermaid (h: string) => Promise<string> (h: string) => Promise.resolve(h) Convert the generated mermaid code
codeFoldable boolean true Whether to enable code folding feature
autoFoldThreshold number 30 Threshold for triggering automatic code folding by line count

🔩 MdEditor Props

Except for the same as MdPreview:

name type default description
pageFullscreen boolean false Screenfull in web page
preview boolean true Preview content in editor
htmlPreview boolean false Preview html in editor(If true, preview must be false)
toolbars Array<ToolbarNames | number> [toolbars] Show contents of toolbar, all keyssee toolbars below
toolbarsExclude Array<ToolbarNames | number> [] Don't show contents of toolbar, all keystoolbars
noPrettier boolean false Use prettier to beautify content or not
tabWidth number 2 One tab eq some spaces
tableShape [number, number] | [number, number, number, number] [6, 4] Preset the size of the table, [columns, rows, Maximum number of columns, Maximum number of rows]
placeholder string ''
footers Array<'markdownTotal' | '=' | 'scrollSwitch' | number> ['markdownTotal', '=', 'scrollSwitch'] Show contents of footer, they are divided by '='. Set it to [] to hidden footer
scrollAuto boolean true Scroll default setting
noUploadImg boolean false Not show the entrance to upload pictures
autoFocus boolean false same as autofocus in native textarea
disabled boolean false same as disabled in native textarea
readOnly boolean false same as readonly in native textarea
maxLength number same as maxlength in native textarea
autoDetectCode boolean false auto detect the type of pasted code, only support that copied from vscode
completions Array<CompletionSource> [] @codemirror/autocomplete List of function to match keywords
showToolbarName boolean false Show toolbar name or not
inputBoxWitdh string '50%' Default width of input box
transformImgUrl (imgUrl: string) => string | Promise<string> t => t Transform image links
『toolbars』 
[
  'bold',
  'underline',
  'italic',
  '-',
  'strikeThrough',
  'title',
  'sub',
  'sup',
  'quote',
  'unorderedList',
  'orderedList',
  'task', // ^2.4.0
  '-',
  'codeRow',
  'code',
  'link',
  'image',
  'table',
  'mermaid',
  'katex',
  '-',
  'revoke',
  'next',
  'save',
  '=',
  'pageFullscreen',
  'fullscreen',
  'preview',
  'previewOnly',
  'htmlPreview',
  'catalog',
  'github'
];

You can sort the toolbar as you like, split tools by '-', the left and right toolbars are divided by '='！

You can customize the toolbar. To display them, put index of defToolbars into toolbars(this is not standard), for more usage, please refer to docs.

『StaticTextDefaultValue』

Expand language, you need to replace all the content here:

export interface ToolbarTips {
  bold?: string;
  underline?: string;
  italic?: string;
  strikeThrough?: string;
  title?: string;
  sub?: string;
  sup?: string;
  quote?: string;
  unorderedList?: string;
  orderedList?: string;
  task?: string; // ^2.4.0
  codeRow?: string;
  code?: string;
  link?: string;
  image?: string;
  table?: string;
  mermaid?: string;
  katex?: string;
  revoke?: string;
  next?: string;
  save?: string;
  prettier?: string;
  pageFullscreen?: string;
  fullscreen?: string;
  catalog?: string;
  preview?: string;
  previewOnly?: string;
  htmlPreview?: string;
  github?: string;
  '-'?: string;
  '='?: string;
}

export interface StaticTextDefaultValue {
  // Toolbar hover tips(html title)
  toolbarTips?: ToolbarTips;
  // H1-H6 dropdown menu item
  titleItem?: {
    h1?: string;
    h2?: string;
    h3?: string;
    h4?: string;
    h5?: string;
    h6?: string;
  };
  imgTitleItem?: {
    link: string;
    upload: string;
    clip2upload: string;
  };
  // The modal tips of add link or upload picture
  linkModalTips?: {
    linkTitle?: string;
    imageTitle?: string;
    descLabel?: string;
    descLabelPlaceHolder?: string;
    urlLabel?: string;
    urlLabelPlaceHolder?: string;
    buttonOK?: string;
  };
  // The modal tips of clip the picture, v1.2.0
  clipModalTips?: {
    title?: string;
    buttonUpload?: string;
  };
  copyCode?: {
    text?: string;
    successTips?: string;
    failTips?: string;
  };
  mermaid?: {
    flow?: string;
    sequence?: string;
    gantt?: string;
    class?: string;
    state?: string;
    pie?: string;
    relationship?: string;
    journey?: string;
  };
  katex?: {
    // formula inline
    inline: string;
    // formula block
    block: string;
  };
  footer?: {
    markdownTotal: string;
    scrollAuto: string;
  };
}

🧵 MdPreview Events

name type description
onChange value: string Content changed(bind to oninput of textarea)
onHtmlChanged html: string Compile markdown successful event, you can use it to get the html code
onGetCatalog list: Array<HeadList> Get catalog of article

🪢 MdEditor Events

Except for the same as MdPreview:

name type description
onSave value: string, html: Promise<string> Saving content, ctrl+s and clicking button will trigger it
onUploadImg files: Array<File>, callback: (urls: string[] | { url: string; alt: string; title: string }[]) => void Uploading picture, when picture is uploading the modal will not close, please provide right urls to the callback function
onError err: { name: 'Cropper' | 'fullscreen' | 'prettier' | 'overlength'; message: string } Catch run-time error, Cropper, fullscreen and prettier are used when they are not loaded. And content exceeds the length limit error
onBlur event: FocusEvent Textarea has lost focus
onFocus event: FocusEvent Textarea has received focus
onInput event: Event Element gets input
onDrop event: DragEvent Selection is being dragged
onInputBoxWitdhChange (width: string) => void Width of input box has been changed

🎍 Slots

name type default description
defToolbars Array<DropdownToolbar | NormalToolbar | ModalToolbar> null Custom toolbar in DropdownToolbar, NormalToolbar or ModalToolbar
defFooters Array<string | VNode | JSX.Element> null Custom footer

NormalToolbar example:

<template>
  <MdEditor>
    <template #defToolbars>
      <NormalToolbar title="mark" @onClick="handler">
        <template #trigger>
          <svg class="md-editor-icon" aria-hidden="true">
            <use xlink:href="#md-editor-icon-mark"></use>
          </svg>
        </template>
      </NormalToolbar>
    </template>
  </MdEditor>
</template>

<script setup lang="ts">
import { MdEditor, NormalToolbar } from 'md-editor-v3';
import 'md-editor-v3/lib/style.css';

const handler = () => {
  console.log('NormalToolbar clicked!');
};
</script>

🤱🏼 Expose

After 2.5.0, Editor exposes several methods on the instance, used to get or change the internal status of the editor.

<template>
  <MdEditor ref="editorRef" />
</template>

<script setup lang="ts">
import { ref, onMounted } from 'vue';
import { MdEditor } from 'md-editor-v3';
import type { ExposeParam } from 'md-editor-v3';
import 'md-editor-v3/lib/style.css';

const editorRef = ref<ExposeParam>();

onMounted(() => {
  editorRef.value?.on('catalog', console.log);
  editorRef.value?.toggleCatalog(true);
});
</script>

Switched to the opposite status, if toggle without input parameter.

👂🏼 on

Get the internal state of the editor, including pageFullscreen, fullscreen, preview, htmlPreview, catalog, etc.

type Keys =
  | 'pageFullscreen'
  | 'fullscreen'
  | 'preview'
  | 'previewOnly'
  | 'htmlPreview'
  | 'catalog';
editorRef.value?.on('pageFullscreen', (status) => console.log(status));

💻 togglePageFullscreen

Toggle status of fullscreen within the page.

editorRef.value?.togglePageFullscreen(true);

🖥 toggleFullscreen

Toggle status of fullscreen widthin browser.

editorRef.value?.toggleFullscreen(true);

📖 togglePreview

Toggle status of preview.

editorRef.value?.togglePreview(true);

📖 togglePreviewOnly

Toggle into Preview Only Mode.

editorRef.value?.togglePreviewOnly(true);

📼 toggleHtmlPreview

Toggle status of htmlPreview.

editorRef.value?.toggleHtmlPreview(true);

🧬 toggleCatalog

Toggle status of catalog.

editorRef.value?.toggleCatalog(true);

💾 triggerSave

Save actions will be triggered.

💉 insert

Manually insert content into textarea.

/**
 * @params selectedText
 */
editorRef.value?.insert((selectedText) => {
  /**
   * @return targetValue    Content to be inserted
   * @return select         Automatically select content, default: true
   * @return deviationStart Start position of the selected content, default: 0
   * @return deviationEnd   End position of the selected content, default: 0
   */
  return {
    targetValue: `${selectedText}`,
    select: true,
    deviationStart: 0,
    deviationEnd: 0
  };
});

For more examples, refer to source code of extension component

🎯 focus

Focus on textarea.

import type { FocusOption } from 'md-editor-v3';

const option: FocusOption | undefined = 'start';

// Cursor position when focusing on textarea, default: position when it last lost focus
editorRef.value?.focus(option);

✒️ rerender

Re render the content.

🔍 getSelectedText

Get the currently selected text.

🗑 resetHistory

Clear current history.

🎛 domEventHandlers

Supports listening to all DOM events.

editorRef.value?.domEventHandlers({
  compositionstart: () => {
    console.log('compositionstart');
  }
});

🎛 execCommand

Insert content into the editor via trigger.

editorRef.value?.execCommand('bold');

🔖 getEditorView

Get codemirror instance.

💴 Config Editor

Use config(option: ConfigOption) to reconfigure markdown-it and so on.

Warning

We recommend configuring it at the project entry point, such as in main.js for projects created with Vite. Avoid calling config within components!

codeMirrorExtensions

Customize new extensions based on theme and default extensions f codeMirror.

Example: Editor does not render the line number of textarea by default, this extension needs to be manually added

import { config } from 'md-editor-v3';
import { lineNumbers } from '@codemirror/view';

config({
  codeMirrorExtensions(_theme, extensions) {
    return [...extensions, lineNumbers()];
  }
});

markdownItConfig

Customize extensions, attributes of markdown-it, etc.

type MarkdownItConfig = (
  md: markdownit,
  options: {
    editorId: string;
  }
) => void;

Example: Use markdown-it-anchor to render a hyperlink symbol to the right of the title

import { config } from 'md-editor-v3';
import ancher from 'markdown-it-anchor';

config({
  markdownItConfig(mdit) {
    mdit.use(ancher, {
      permalink: true
    });
  }
});

markdownItPlugins

Select and add built-in plugins to markdown-it.

type MarkdownItPlugins = (
  plugins: Array<MarkdownItConfigPlugin>,
  options: {
    editorId: string;
  }
) => Array<MarkdownItConfigPlugin>;

Example: Modify the class name of the image.

import { config } from 'md-editor-v3';

config({
  markdownItPlugins(plugins) {
    return plugins.map((p) => {
      if (p.type === 'image') {
        return {
          ...p,
          options: {
            ...p.options,
            classes: 'my-class'
          }
        };
      }

      return p;
    });
  }
});

editorConfig

Add more languages, reset mermaid template or delay rendering time:

import { config } from 'md-editor-v3';

config({
  editorConfig: {
    languageUserDefined: { lang: StaticTextDefaultValue },
    mermaidTemplate: {
      flow: `flow tempalte`,
      ...more
    },
    // Default 500ms. It is set to 0ms when preview only and not set.
    renderDelay: 500,
    // for modal component
    zIndex: 2000
  }
});

editorExtensions

Config some dependency libraries, like highlight..

import { config } from 'md-editor-v3';

config({
  editorExtensions: { iconfont: 'https://xxx.cc' }
});
『EditorExtensions』 
export interface EditorExtensions {
  highlight?: {
    instance?: any;
    js?: string;
    css?: {
      [key: string]: {
        light: string;
        dark: string;
      };
    };
  };
  prettier?: {
    standaloneJs?: string;
    parserMarkdownJs?: string;
  };
  cropper?: {
    instance?: any;
    js?: string;
    css?: string;
  };
  iconfont?: string;
  screenfull?: {
    instance?: any;
    js?: string;
  };
  mermaid?: {
    instance?: any;
    js?: string;
  };
  katex?: {
    instance?: any;
    js?: string;
    css?: string;
  };
}

editorExtensionsAttrs

Synchronously add attributes to the CDN link tags, consistent with the type of editorExtensions, with a value type of HTMLElementTagNameMap['tagName'].

import { config, editorExtensionsAttrs } from 'md-editor-v3';

config({
  editorExtensionsAttrs
});

Do not attempt to define the src \ onload \ id of the script and rel \ href \ id of the link in editorExtensionsAttrs, as they will be overwritten by default values

🫨 iconfontType

Set the way to display icons:

  • svg: with symbol
  • class: with font-class

If the icon is customized through the attribute customIcon, the customized icon will be used first.

🎨 mermaidConfig

Configure mermaid, Details

import { config } from 'md-editor-v3';

config({
  mermaidConfig(base: any) {
    return {
      ...base,
      logLevel: 'error'
    };
  }
});

🔧 katexConfig

Configure katex, Details

import { config } from 'md-editor-v3';

config({
  katexConfig(base: any) {
    return {
      ...base,
      strict: false
    };
  }
});

🪡 Shortcut Key

Pay attention: shortcut keys are only available when the textarea has received focus!

key function description
TAB insert space Insert space, the length eq tabWidth, default: 2, support multiline
SHIFT + TAB delete space, setting is the same as Tab
CTRL + C copy When selected, copy the selected content. When not selected, copy the content of the current line
CTRL + X shear When selected, cut the selected content. When not selected, cut the current line
CTRL + D delete When selected, delete the selected content. When not selected, delete the current line
CTRL + S save Trigger onSave event
CTRL + B bold text **bold**
CTRL + U underline <u>underline</u>
CTRL + I italic *italic*
CTRL + 1-6 h1-h6 # title
CTRL + ↑ superscript <sup>superscript</sup>
CTRL + ↓ subscript <sub>subscript</sub>
CTRL + O ordered list 1. ordered list
CTRL + L link [link](https://github.com/imzbf/md-editor-v3)
CTRL + Z withdraw Withdraw history in editor, not the function of system
CTRL + SHIFT + S line-through ~line-through~
CTRL + SHIFT + U unordered list - unordered list
CTRL + SHIFT + C code block
CTRL + SHIFT + I picture ![picture](https://imzbf.github.io/md-editor-v3/imgs/preview-light.png)
CTRL + SHIFT + Z forward Forward history in editor, not the function of system
CTRL + SHIFT + F Beautify
CTRL + ALT + C code row
CTRL + SHIFT + ALT + T table |table|

🪤 Internal Components

<script lang="ts" setup>
import { NormalToolbar } from 'md-editor-v3';
</script>

On-demand import. For more examples, refer to document.

🐣 NormalToolbar

NormalToolbar

  • props

    • title: string, not required, title of toolbar.

  • events

    • onClick: (e: MouseEvent) => void, required.

  • slots

    • trigger: VNode | JSX.Element, required, it is usually an icon, which is displayed on the toolbar.

🐼 DropdownToolbar

DropdownToolbar

  • props

    • title: string, not required, title of toolbar.
    • visible: boolean, required.

  • events

    • onChange: (visible: boolean) => void, required.

  • slots

    • trigger: VNode | JSX.Element, required, it is usually an icon, which is displayed on the toolbar.
    • overlay: VNode | JSX.Element, required, content of dropdown box.

🦉 ModalToolbar

ModalToolbar

  • props

    • title: string, not required, title of toolbar.
    • modalTitle: string, not required, title of the Modal.
    • visible: boolean, required, visibility of Modal.
    • width: string, not required, width of Modal, default auto.
    • height: string, same as width.
    • showAdjust: boolean, not required, visibility of fullscreen button.
    • isFullscreen: boolean, required when showAdjust = true, status of fullscreen.
    • class: string, not required.
    • style: CSSProperties | string, not required.
    • showMask: boolean, not required, whether to display the mask layer, default true.

  • events

    • onClick: () => void, required.
    • onClose: () => void, required, closed event.
    • onAdjust: (val: boolean) => void, fullscreen button was clicked.

  • slots

    • trigger: VNode | JSX.Element, required, it is usually an icon, which is displayed on the toolbar.
    • default: VNode | JSX.Element, required, content of Modal.

🐻 MdCatalog

MdCatalog

  • props

    • editorId: string, required, same as editor's editorId, used to register listening events.
    • class: string, not required.
    • mdHeadingId: MdHeadingId, not required, same as editor.
    • scrollElement: string | HTMLElement, not required, it is an element selector when its type is string. When previewOnly eq true, it is usually set to document.documentElement.
    • theme: 'light' | 'dark', not required, provide it when you want to change theme online, it is the same as Editor theme.
    • offsetTop: number, not required, highlight current item of catalogs when title is offsetTop pixels from the top, default 20.
    • scrollElementOffsetTop: number, not required, offsetTop of the scroll container，default 0.
    • isScrollElementInShadow: boolean, whether the scroll container is in web component, default false.

  • events

    • onClick: (e: MouseEvent, t: TocItem) => void, not required, heading was clicked.
    • onActive: (heading: HeadList | undefined) => void, not required, heading was highlighted.

🛸 MdModal

MdModal

  • props

    • title: string, not required, title of Modal.
    • visible: boolean, required, visibility of Modal.
    • width: string, not required, width of Modal, default auto.
    • height: string, same as width.
    • showAdjust: boolean, not required, visibility of fullscreen button.
    • isFullscreen: boolean, required when showAdjust = true, status of fullscreen.
    • class: string, not required.
    • style: CSSProperties | string, not required.
    • showMask: boolean, not required, whether to display the mask layer, default true.

  • events

    • onClose: () => void, required, closed event.
    • onAdjust: (val: boolean) => void, fullscreen button was clicked.

  • slots

    • default: VNode | JSX.Element, required, content of Modal.

🛸 NormalFooterToolbar

NormalFooterToolbar

  • events

    • onClick: (e: MouseEvent) => void, not required, toolbar was clicked.

  • slots

    • default: VNode | JSX.Element, required, content.

🪤 Internal Configuration

import {
  iconfontClassUrl,
  iconfontSvgUrl,
  allToolbar,
  allFooter,
  zh_CN,
  en_US
} from 'md-editor-v3';

console.log(iconfontClassUrl, iconfontSvgUrl, allToolbar, allFooter, zh_CN, en_US);

🗂 Examples

🎸 Jsx Template

import { defineComponent, reactive } from 'vue';
import { MdEditor } from 'md-editor-v3';
import 'md-editor-v3/lib/style.css';

export default defineComponent({
  setup() {
    const md = reactive({
      text: '# Hello Editor'
    });
    return () => (
      <MdEditor modelValue={md.text} onChange={(value) => (md.text = value)} />
    );
  }
});

🥹 Upload Picture

Tips: When you paste and upload GIF, it will upload a static picture. So you should upload it by file system!

<template>
  <MdEditor v-model="text" @onUploadImg="onUploadImg" />
</template>

<script setup>
import { ref } from 'vue';
import axios from 'axios';
import { MdEditor } from 'md-editor-v3';
import 'md-editor-v3/lib/style.css';

const text = ref('# Hello Editor');

const onUploadImg = async (files, callback) => {
  const res = await Promise.all(
    files.map((file) => {
      return new Promise((rev, rej) => {
        const form = new FormData();
        form.append('file', file);

        axios
          .post('/api/img/upload', form, {
            headers: {
              'Content-Type': 'multipart/form-data'
            }
          })
          .then((res) => rev(res))
          .catch((error) => rej(error));
      });
    })
  );

  // Approach 1
  callback(res.map((item) => item.data.url));

  // Approach 2
  // callback(
  //   res.map((item: any) => ({
  //     url: item.data.url,
  //     alt: 'alt',
  //     title: 'title'
  //   }))
  // );
};
</script>

🧙‍♂️ Change Styles

.css-vars(@isDark) {
  --md-color: if(@isDark, #999, #222);
  --md-hover-color: if(@isDark, #bbb, #000);
  --md-bk-color: if(@isDark, #000, #fff);
  --md-bk-color-outstand: if(@isDark, #333, #f2f2f2);
  --md-bk-hover-color: if(@isDark, #1b1a1a, #f5f7fa);
  --md-border-color: if(@isDark, #2d2d2d, #e6e6e6);
  --md-border-hover-color: if(@isDark, #636262, #b9b9b9);
  --md-border-active-color: if(@isDark, #777, #999);
  --md-modal-mask: #00000073;
  --md-modal-shadow: if(@isDark, 0px 6px 24px 2px #00000066, 0px 6px 24px 2px #00000019);
  --md-scrollbar-bg-color: if(@isDark, #0f0f0f, #e2e2e2);
  --md-scrollbar-thumb-color: if(@isDark, #2d2d2d, #0000004d);
  --md-scrollbar-thumb-hover-color: if(@isDark, #3a3a3a, #00000059);
  --md-scrollbar-thumb-active-color: if(@isDark, #3a3a3a, #00000061);
}

.md-editor {
  .css-vars(false);
}

.md-editor-dark {
  .css-vars(true);
}

Change background color in dark mode:

.md-editor-dark {
  --md-bk-color: #333 !important;
}