Improve colorscale descriptions.

Author: mdtusz

src/components/colorscale/attributes.js

@@ -37,9 +37,13 @@ module.exports = {
         description: [
             'Sets the colorscale.',
             'The colorscale must be an array containing',
-            'arrays mapping a normalized value to an rgb color. At minimum, a',
-            'mapping for the lowest (0) and highest (1) values are required.',
-            'For example, `[[0, \'rgb(0,0,255)\', [1, \'rgb(255,0,0)\']]`'
+            'arrays mapping a normalized value to an',
+            'rgb, rgba, hex, hsl, hsv, or named color string.',
+            'At minimum, a mapping for the lowest (0) and highest (1)',
+            'values are required. For example,',
+            '`[[0, \'rgb(0,0,255)\', [1, \'rgb(255,0,0)\']]`.',
+            'To control the bounds of the colorscale in z space,',
+            'use zmin and zmax'
         ].join(' ')
     },
     autocolorscale: {

src/traces/scatter/attributes.js

@@ -246,11 +246,15 @@ module.exports = {
             valType: 'colorscale',
             role: 'style',
             description: [
-                'Has only an effect if `marker.color` is set to a numerical array.',
-                'Sets the colorscale. The colorscale must be an array containing',
-                'arrays mapping a normalized value to an rgb color. At minimum, a',
-                'mapping for the lowest (0) and highest (1) values are required.',
-                'For example, `[[0, \'rgb(0,0,255)\', [1, \'rgb(255,0,0)\']]`'
+                'Sets the colorscale.',
+                'The colorscale must be an array containing',
+                'arrays mapping a normalized value to an',
+                'rgb, rgba, hex, hsl, hsv, or named color string.',
+                'At minimum, a mapping for the lowest (0) and highest (1)',
+                'values are required. For example,',
+                '`[[0, \'rgb(0,0,255)\', [1, \'rgb(255,0,0)\']]`.',
+                'To control the bounds of the colorscale in color space,',
+                'use cmin and cmax'
             ].join(' ')
         },
         cauto: {