keeweb/app/templates/settings/settings-general.html

<div>
    <h1><i class="fa fa-cog"></i> General Settings</h1>
    <h2>Appearance</h2>
    <div>
        <label for="settings__general-theme">Theme:</label>
        <select class="settings__general-theme settings__select" id="settings__general-theme">
            <% _.forEach(themes, function(name, key) { %>
            <option value="<%= key %>" <%= key === activeTheme ? 'selected' : '' %>><%- name %></option>
            <% }); %>
        </select>
    </div>
    <% if (devTools) { %>
    <h2>Advanced</h2>
    <a class="settings__general-dev-tools-link">Show dev tools</a>
    <% } %>
</div>