Grid loading API:
sample-data
random-3x10
random-100x2k
showLoading()
hideLoading()
showMask()
hideMask()
showMask({"opacity":"0.3"})
setLoading()
(default)
setLoading({"size":"16px", "color":"green"})
setLoading({"size":"60px", "color":"green", "fast":"fast"})
setLoading("Loading ...")
setLoading with this element