Allowed go back button to be disabled in modInfo

src/components/system/LayerTab.vue

@@ -2,7 +2,7 @@
 	<LayerProvider :layer="layer" :index="index">
 		<div class="layer-tab" :style="style" :class="{ hasSubtabs: subtabs }">
 			<branches>
-				<sticky v-if="subtabs" class="subtabs" :class="{ floating, firstTab }">
+				<sticky v-if="subtabs" class="subtabs" :class="{ floating, firstTab: firstTab || !allowGoBack }">
 					<tab-button v-for="(subtab, id) in subtabs" @selectTab="selectSubtab(id)" :key="id" :activeTab="id === activeSubtab"
 						:options="subtab" :text="id" />
 				</sticky>
@@ -18,6 +18,7 @@ import { layers } from '../../store/layers';
 import { player } from '../../store/proxies';
 import { coerceComponent } from '../../util/vue';
 import { isPlainObject } from '../../util/common';
+import modInfo from '../../data/modInfo.json';
 import themes from '../../data/themes';
 
 export default {
@@ -27,6 +28,9 @@ export default {
 		index: Number,
 		forceFirstTab: Boolean
 	},
+	data() {
+		return { allowGoBack: modInfo.allowGoBack };
+	},
 	computed: {
 		floating() {
 			return themes[player.theme].floatingTabs;
@@ -131,6 +135,11 @@ export default {
 	padding-left: 0;
 }
 
+.subtabs:not(.floating).firstTab {
+    padding-left: 0;
+    padding-right: 0;
+}
+
 .subtabs:not(.floating):first-child {
 	margin-top: -50px;
 	border-top: 0;

src/components/system/Tabs.vue

@@ -2,7 +2,7 @@
 	<perfect-scrollbar class="tabs-container">
 		<div class="tabs">
 			<div v-for="(tab, index) in tabs" :key="index" class="tab">
-				<button v-if="index > 0" class="goBack" @click="goBack(index)">←</button>
+				<button v-if="index > 0 && allowGoBack" class="goBack" @click="goBack(index)">←</button>
 				<perfect-scrollbar>
 					<div class="inner-tab">
 						<LayerProvider :layer="tab" :index="index" v-if="tab in components && components[tab]">
@@ -22,9 +22,13 @@
 import { mapState } from 'vuex';
 import { layers } from '../../store/layers';
 import { player } from '../../store/proxies';
+import modInfo from '../../data/modInfo.json';
 
 export default {
 	name: 'Tabs',
+	data() {
+		return { allowGoBack: modInfo.allowGoBack };
+	},
 	computed: {
 		...mapState([ 'tabs' ]),
 		components() {

src/data/modInfo.json

@@ -8,6 +8,7 @@
 	"versionNumber": "0.0",
 	"versionTitle": "Initial Commit",
 
+	"allowGoBack": false,
 	"allowSmall": false,
 	"defaultDecimalsShown": 2,
 	"useHeader": true,