added random playlist example in json-api.md

docs/interfaces/json-api.md

@@ -342,6 +342,17 @@ transition | Array of time each preset should transition to the next one, in ten
 repeat | How many times the entire playlist should cycle before finishing. Set to `0` for an indefinite cycle. Default to indefinite if not provided.
 end | Single preset ID to apply after the playlist finished. Has no effect when an indefinite cycle is set. If not provided, the light will stay on the last preset of the playlist.
 
+Sample playlist for an endless cycle of random effects with random colors and random palettes:
+
+```json
+{
+"9":{"playlist":{"ps":[12],"dur":[600],"transition":[30],"repeat":0,"r":false,"end":0},"on":true,"n":"AllRandomPlaylist"},
+
+"12":{"bri":255,"mainseg":0,"on":true,"seg":[{"bri":255,"c1":128,"c2":128,"c3":16,"cct":127,"col":["r",[0,0,0], "r"],"frz":false,"fx":"r","grp":1,"id":0,"ix":128,"m12":1,"mi":false,"o1":false,"o2":false,"o3":false,"of":0,"on":true,"pal":"r","rev":false,"sel":true,"set":0,"si":0,"spc":0,"start":0,"stop":50,"sx":128 ,"fxdef":true}],"transition":7,"n":"random effect"}
+}
+```
+
+
 #### Light capabilities
 
 In order to e.g. only show color controls relevant to a given setup, it is necessary to obtain the color capabilities of the light.