imporve labels of skybox params

src/mol-canvas3d/passes/background.ts

@@ -33,20 +33,20 @@ const SharedParams = {
 const SkyboxParams = {
     faces: PD.MappedStatic('urls', {
         urls: PD.Group({
-            nx: PD.Text('', { label: 'Negative X' }),
-            ny: PD.Text('', { label: 'Negative Y' }),
-            nz: PD.Text('', { label: 'Negative Z' }),
-            px: PD.Text('', { label: 'Positive X' }),
-            py: PD.Text('', { label: 'Positive Y' }),
-            pz: PD.Text('', { label: 'Positive Z' }),
+            nx: PD.Text('', { label: 'Negative X / Left' }),
+            ny: PD.Text('', { label: 'Negative Y / Bottom' }),
+            nz: PD.Text('', { label: 'Negative Z / Back' }),
+            px: PD.Text('', { label: 'Positive X / Right' }),
+            py: PD.Text('', { label: 'Positive Y / Top' }),
+            pz: PD.Text('', { label: 'Positive Z / Front' }),
         }, { isExpanded: true, label: 'URLs' }),
         files: PD.Group({
-            nx: PD.File({ label: 'Negative X', accept: 'image/*' }),
-            ny: PD.File({ label: 'Negative Y', accept: 'image/*' }),
-            nz: PD.File({ label: 'Negative Z', accept: 'image/*' }),
-            px: PD.File({ label: 'Positive X', accept: 'image/*' }),
-            py: PD.File({ label: 'Positive Y', accept: 'image/*' }),
-            pz: PD.File({ label: 'Positive Z', accept: 'image/*' }),
+            nx: PD.File({ label: 'Negative X / Left', accept: 'image/*' }),
+            ny: PD.File({ label: 'Negative Y / Bottom', accept: 'image/*' }),
+            nz: PD.File({ label: 'Negative Z / Back', accept: 'image/*' }),
+            px: PD.File({ label: 'Positive X / Right', accept: 'image/*' }),
+            py: PD.File({ label: 'Positive Y / Top', accept: 'image/*' }),
+            pz: PD.File({ label: 'Positive Z / Front', accept: 'image/*' }),
         }, { isExpanded: true, label: 'Files' }),
     }),
     ...SharedParams,