As a sub, how to use Bokeh filter in command-line?
Provided you have gmic executable installed:
$ gmic sp fx_bokeh 3,6,0,30,8,4,0.3,0.2,210,210,80,160,0.7,30,20,20,1,2,170,130,20,110,0.15
sp gives a sample image
fx_bokeh is the custom function called from Gimp gmic-qt plugin Gui Bokeh.
The parameters are the defaults shown in the GUI, Shape menu entry is numbered from top to bottom Triangle==0 …, Colors are represented by R,G,B,A values between 0 and 255
It working! Thank you @KaRo !