diff --git a/tabby-core/src/components/windowControls.component.pug b/tabby-core/src/components/windowControls.component.pug
index ca46996d..ca89a7d8 100644
--- a/tabby-core/src/components/windowControls.component.pug
+++ b/tabby-core/src/components/windowControls.component.pug
@@ -1,18 +1,18 @@
-button.btn.btn-secondary(
+button.btn.btn-dark(
     (click)='hostWindow.minimize()',
 )
     svg(version='1.1', width='10', height='10')
         path(d='M 0,5 10,5 10,6 0,6 Z')
 
-button.btn.btn-secondary((click)='hostWindow.toggleMaximize()', *ngIf='!hostWindow.isMaximized()')
+button.btn.btn-dark((click)='hostWindow.toggleMaximize()', *ngIf='!hostWindow.isMaximized()')
     svg(version='1.1', width='10', height='10')
         path(d='M 0,0 0,10 10,10 10,0 Z M 1,1 9,1 9,9 1,9 Z')
 
-button.btn.btn-secondary((click)='hostWindow.toggleMaximize()', *ngIf='hostWindow.isMaximized()')
+button.btn.btn-dark((click)='hostWindow.toggleMaximize()', *ngIf='hostWindow.isMaximized()')
     svg(version='1.1', width='10', height='10', viewBox='0 0 512 512')
         path(d="M464 0H144c-26.5 0-48 21.5-48 48v48H48c-26.5 0-48 21.5-48 48v320c0 26.5 21.5 48 48 48h320c26.5 0 48-21.5 48-48v-48h48c26.5 0 48-21.5 48-48V48c0-26.5-21.5-48-48-48zM32 144c0-8.8 7.2-16 16-16h320c8.8 0 16 7.2 16 16v320c0 8.8-7.2 16-16 16H48c-8.8 0-16-7.2-16-16v-80zm448 224c0 8.8-7.2 16-16 16h-48V144c0-26.5-21.5-48-48-48H128V48c0-8.8 7.2-16 16-16h320c8.8 0 16 7.2 16 16v320z")
 
-button.btn.btn-secondary.btn-close(
+button.btn.btn-secondary(
     (click)='closeWindow()'
 )
     svg(version='1.1', width='10', height='10')