var mainColor = "#7ff07f";
var mainHoverColor = "#6fe06f";
var textColor = "#4a4a4a";
var headerColor = "#7ff07f";
var headerBackgroundColor = "#4a4a4a";
var bodyContainerBackgroundColor = "#f8f8f8";
var defaultThemeColorsSurvey = Survey.StylesManager.ThemeColors["default"];
defaultThemeColorsSurvey["$main-color"] = mainColor;
defaultThemeColorsSurvey["$main-hover-color"] = mainHoverColor ;
defaultThemeColorsSurvey["$text-color"] = textColor;
defaultThemeColorsSurvey["$header-color"] = headerColor;
defaultThemeColorsSurvey["$header-background-color"] = headerBackgroundColor;
defaultThemeColorsSurvey["$body-container-background-color"] = bodyContainerBackgroundColor;
var defaultThemeColorsEditor = SurveyCreator.StylesManager.ThemeColors["default"];
defaultThemeColorsEditor["$primary-color"] = mainColor;
defaultThemeColorsEditor["$secondary-color"] = mainColor;
defaultThemeColorsEditor["$primary-hover-color"] = mainHoverColor;
defaultThemeColorsEditor["$primary-text-color"] = textColor;
defaultThemeColorsEditor["$selection-border-color"] = mainColor;
Survey.StylesManager.applyTheme();
SurveyCreator.StylesManager.applyTheme();
const options = { showLogicTab: true };
var creator = new SurveyCreator.SurveyCreator("creatorElement", options);
creator.showToolbox = "right";
creator.showPropertyGrid = "right";
creator.rightContainerActiveItem("toolbox");
<!DOCTYPE html>
<html lang="en">
<head>
<title>Custom Theme, Survey Creator Example</title>
<meta name="viewport" content="width=device-width" />
<script src="https://unpkg.com/knockout@3.5.1/build/output/knockout-latest.js"></script>
<script src="/DevBuilds/survey-knockout/survey.ko.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.4.10/ace.min.js" type="text/javascript" charset="utf-8"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.4.10/ext-language_tools.js" type="text/javascript" charset="utf-8"></script>
<!-- Uncomment to enable Select2
<script src="https://unpkg.com/jquery"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
-->
<script src="/DevBuilds/survey-creator/survey-creator.min.js"></script>
<link href="/DevBuilds/survey-creator/survey-creator.min.css" type="text/css" rel="stylesheet" />
<link rel="stylesheet" href="https://unpkg.com/bootstrap@3.3.7/dist/css/bootstrap.min.css">
<link rel="stylesheet" href="./index.css">
</head>
<body>
<link href="/DevBuilds/survey-core/survey.min.css" type="text/css" rel="stylesheet" /><div id="surveyContainer">
<div id="creatorElement"></div>
</div>
<script type="text/javascript" src="./index.js"></script>
</body>
</html>