src/Tools/VSCode/extension/media/vscode.css

tuned;

:root {
  --container-paddding: 20px;
  --input-padding-vertical: 6px;
  --input-padding-horizontal: 4px;
  --input-margin-vertical: 4px;
  --input-margin-horizontal: 0;
}

body {
  padding: 0 var(--container-paddding);
  color: var(--vscode-foreground);
  font-size: var(--vscode-font-size);
  font-weight: var(--vscode-font-weight);
  font-family: var(--vscode-font-family);
  background-color: var(--vscode-editor-background);
}

ol,
ul {
  padding-left: var(--container-paddding);
}

body > *,
form > * {
  margin-block-start: var(--input-margin-vertical);
  margin-block-end: var(--input-margin-vertical);
}

*:focus {
  outline-color: var(--vscode-focusBorder) !important;
}

a {
  color: var(--vscode-textLink-foreground);
  text-decoration: none;
}

a:hover,
a:active {
  color: var(--vscode-textLink-activeForeground);
}

code {
  font-size: var(--vscode-editor-font-size);
  font-family: var(--vscode-editor-font-family);
}

button {
  border: none;
  padding: var(--input-padding-vertical) var(--input-padding-horizontal);
  width: 20%;
  text-align: center;
  outline: 1px solid transparent;
  outline-offset: 2px !important;
  color: var(--vscode-button-foreground);
  background: var(--vscode-button-background);
}

button:hover {
  cursor: pointer;
  background: var(--vscode-button-hoverBackground);
}

button:focus {
  outline-color: var(--vscode-focusBorder);
}

button.secondary {
  color: var(--vscode-button-secondaryForeground);
  background: var(--vscode-button-secondaryBackground);
}

button.secondary:hover {
  background: var(--vscode-button-secondaryHoverBackground);
}

input:not([type='checkbox']),
textarea {
  display: block;
  width: 100%;
  border: none;
  font-family: var(--vscode-font-family);
  padding: var(--input-padding-vertical) var(--input-padding-horizontal);
  color: var(--vscode-input-foreground);
  outline-color: var(--vscode-input-border);
  background-color: var(--vscode-input-background);
}

input::placeholder,
textarea::placeholder {
  color: var(--vscode-input-placeholderForeground);
}

#controls {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  align-items: center;
}

#controls > *{
  margin-left: 5px;
  margin-top: 5px;
}

/* line break for pre  */
pre {
  white-space: pre-wrap;     /* Since CSS 2.1 */
  white-space: -moz-pre-wrap;/* Mozilla, since 1999 */
  white-space: -pre-wrap;    /* Opera 4-6 */
  white-space: -o-pre-wrap;  /* Opera 7 */
  word-wrap: break-word;     /* Internet Explorer 5.5+ */
}