added more param docs

src/mol-canvas3d/controls/trackball.ts

@@ -40,7 +40,7 @@ export const TrackballControlsParams = {
     zoomSpeed: PD.Numeric(6.0, { min: 0.1, max: 10, step: 0.1 }),
     panSpeed: PD.Numeric(0.8, { min: 0.1, max: 5, step: 0.1 }),
 
-    spin: PD.Boolean(false),
+    spin: PD.Boolean(false, { description: 'Spin the 3D scene around the x-axis in view space' }),
     spinSpeed: PD.Numeric(1, { min: -100, max: 100, step: 1 }),
 
     staticMoving: PD.Boolean(true, { isHidden: true }),

src/mol-gl/renderer.ts

@@ -45,7 +45,7 @@ interface Renderer {
 }
 
 export const RendererParams = {
-    backgroundColor: PD.Color(Color(0x000000)),
+    backgroundColor: PD.Color(Color(0x000000), { description: 'Background color of the 3D canvas' }),
     pickingAlphaThreshold: PD.Numeric(0.5, { min: 0.0, max: 1.0, step: 0.01 }, { description: 'The minimum opacity value needed for an object to be pickable.' }),
     interiorDarkening: PD.Numeric(0.5, { min: 0.0, max: 1.0, step: 0.01 }),
 

src/mol-plugin/ui/structure/representation.tsx

@@ -106,8 +106,8 @@ export class StructureRepresentationControls extends CollapsableControls {
         const { options } = this.values
         return {
             options: PD.Group({
-                showHydrogens: PD.Boolean(options.showHydrogens),
-                visualQuality: PD.Select<VisualQuality>(options.visualQuality, VisualQualityOptions),
+                showHydrogens: PD.Boolean(options.showHydrogens, { description: 'Toggle display of hydrogen atoms in representations' }),
+                visualQuality: PD.Select<VisualQuality>(options.visualQuality, VisualQualityOptions, { description: 'Control the visual/rendering quality of representations' }),
             }, { isExpanded: true })
         }
     }