not sure why I didn't think of this sooner.

desktop/resources/ui/ui.atlas

@@ -6,7 +6,7 @@ filter: Nearest,Nearest
 repeat: none
 button
   rotate: false
-  xy: 2, 6
+  xy: 2, 10
   size: 52, 52
   split: 24, 24, 12, 22
   orig: 52, 52
@@ -14,7 +14,7 @@ button
   index: -1
 button.disabled
   rotate: false
-  xy: 56, 6
+  xy: 56, 10
   size: 52, 52
   split: 24, 24, 12, 22
   orig: 52, 52
@@ -22,7 +22,7 @@ button.disabled
   index: -1
 button.hover
   rotate: false
-  xy: 110, 6
+  xy: 110, 10
   size: 52, 52
   split: 24, 24, 12, 22
   orig: 52, 52
@@ -30,15 +30,29 @@ button.hover
   index: -1
 button.pressed
   rotate: false
-  xy: 164, 6
+  xy: 164, 10
   size: 52, 52
   split: 24, 24, 16, 16
   orig: 52, 52
   offset: 0, 0
   index: -1
+checkbox
+  rotate: false
+  xy: 264, 2
+  size: 42, 60
+  orig: 42, 60
+  offset: 0, 0
+  index: -1
+checkbox.on
+  rotate: false
+  xy: 308, 2
+  size: 42, 60
+  orig: 42, 60
+  offset: 0, 0
+  index: -1
 screenshot-image-button
   rotate: false
-  xy: 368, 38
+  xy: 456, 42
   size: 20, 20
   split: 8, 8, 8, 8
   orig: 20, 20
@@ -46,7 +60,7 @@ screenshot-image-button
   index: -1
 screenshot-image-button-active
   rotate: false
-  xy: 346, 38
+  xy: 434, 42
   size: 20, 20
   split: 8, 8, 8, 8
   orig: 20, 20
@@ -54,7 +68,7 @@ screenshot-image-button-active
   index: -1
 scroll-slider
   rotate: false
-  xy: 264, 10
+  xy: 352, 14
   size: 20, 48
   split: 8, 8, 12, 12
   orig: 20, 48
@@ -62,7 +76,7 @@ scroll-slider
   index: -1
 slider
   rotate: false
-  xy: 390, 38
+  xy: 478, 42
   size: 20, 20
   split: 8, 8, 8, 8
   orig: 20, 20
@@ -70,21 +84,21 @@ slider
   index: -1
 slider-bar
   rotate: false
-  xy: 286, 30
+  xy: 374, 34
   size: 28, 28
   orig: 28, 28
   offset: 0, 0
   index: -1
 slider-bar-hover
   rotate: false
-  xy: 316, 30
+  xy: 404, 34
   size: 28, 28
   orig: 28, 28
   offset: 0, 0
   index: -1
 ui-bg
   rotate: false
-  xy: 218, 2
+  xy: 218, 6
   size: 44, 56
   split: 20, 21, 16, 16
   orig: 44, 56