Export Robofont glyph image to iCloud, then reimport it again. After editing it on an ipad for instance.

export_drawings.py

import drawBot as ctx
import os
from os.path import expanduser
home = expanduser("~")

imagesDir = "Library/Mobile Documents/com~apple~CloudDocs/RoboFont/"
path = os.path.join(home, imagesDir)
if not os.path.exists(path):
    os.makedirs(path)

if not os.path.exists(path):
    print('Could not make RoboFont iCloud images folder at', path )

padding = 100

f = CurrentFont()
if f is not None:
    ufoName = os.path.basename(f.path)
    ufoName = ufoName.replace(".ufo", "_images")
    #print(ufoName)
    ufoImagesPath = os.path.join(path, ufoName)
    print("exporting to", ufoImagesPath)
    if not os.path.exists(ufoImagesPath):
        os.makedirs(ufoImagesPath)
    
    g = CurrentGlyph()
    if g is not None:
        ctx.newPage(int(g.width) + 2*padding, int(f.info.unitsPerEm) + 2*padding)
        ctx.translate(padding,-f.info.descender + padding)
        ctx.stroke(0.5)
        ctx.strokeWidth(1)
        ctx.line((0,0), (g.width, 0))
        ctx.fill(0)
        ctx.drawGlyph(g)
        imageName = os.path.join(ufoImagesPath, "%s.png" % g.name)
        ctx.saveImage(imageName)
        ctx.newDrawing()
else:
    print("no open font")

import_drawings.py

import os
from mojo.UI import GetFile
import drawBot as ctx

from os.path import expanduser
home = expanduser("~")
#print(home)

padding = 100

imagesDir = "Library/Mobile Documents/com~apple~CloudDocs/RoboFont/"
path = os.path.join(home, imagesDir)
if not os.path.exists(path):
    print("no icloud images folder found", path)
else:

    f = CurrentFont()
    if f is not None:
        ufoName = os.path.basename(f.path)
        ufoName = ufoName.replace(".ufo", "_images")
        #print(ufoName)
        ufoImagesPath = os.path.join(path, ufoName)
        #print(ufoImagesPath, os.path.exists(ufoImagesPath))
        g = CurrentGlyph()
        imageName = os.path.join(ufoImagesPath, "%s.png" % g.name)
        #print(imageName, os.path.exists(imageName))
        w, h = ctx.imageSize(imageName)
        scale = f.info.unitsPerEm / (h - 2*padding)
        #print(scale)
        g.addImage(imageName, scale=scale, position=(-padding, f.info.descender - padding))
        g.update()