BaseTheme is a separate file; not duplicated inside child theme

client/homebrew/brewRenderer/brewRenderer.jsx

@@ -13,6 +13,8 @@ const RenderWarnings = require('homebrewery/renderWarnings/renderWarnings.jsx');
 const NotificationPopup = require('./notificationPopup/notificationPopup.jsx');
 const Frame = require('react-frame-component').default;
 
+const Themes = require('themes/themes.json');
+
 const PAGE_HEIGHT = 1056;
 const PPR_THRESHOLD = 50;
 
@@ -180,6 +182,7 @@ const BrewRenderer = createClass({
 		//Also render dummy page while iframe is mounting.
 		const rendererPath = this.props.renderer == 'V3' ? 'V3' : 'Legacy';
 		const themePath    = this.props.theme ?? '5ePHB';
+		const baseThemePath = Themes[rendererPath][themePath].baseTheme;
 
 		return (
 			<React.Fragment>
@@ -203,6 +206,9 @@ const BrewRenderer = createClass({
 							<RenderWarnings />
 							<NotificationPopup />
 						</div>
+						{baseThemePath &&
+							<link href={`/themes/${rendererPath}/${baseThemePath}/style.css`} rel='stylesheet'/>
+						}
 						<link href={`/themes/${rendererPath}/${themePath}/style.css`} rel='stylesheet'/>
 						{/* Apply CSS from Style tab and render pages from Markdown tab */}
 						{this.state.isMounted

themes/V3/5eDMG/style.less

@@ -1,7 +1,3 @@
-@import (less) './themes/fonts/5e/fonts.less';
-@import (less) './themes/assets/assets.less';
-@import (less) './themes/V3/5ePHB/style.less';
-
 :root {
 	//Colors
 	--HB_Color_Accent                : #EBCEC3; // Salmon