Font table options:
  --drop-tables[+|-]=<table>[,<table>...]
      Specify (=), add to (+=) or exclude from (-=) the comma-separated
      set of tables that will be be dropped.
      By default, the following tables are dropped:
      'BASE', 'JSTF', 'DSIG', 'EBDT', 'EBLC', 'EBSC', 'SVG ', 'PCLT', 'LTSH'
      and Graphite tables: 'Feat', 'Glat', 'Gloc', 'Silf', 'Sill'
      and color tables: 'CBLC', 'CBDT', 'sbix'.
      The tool will attempt to subset the remaining tables.
      Examples:
        --drop-tables-='SVG '
            * Drop the default set of tables but keep 'SVG '.
        --drop-tables+=GSUB
            * Drop the default set of tables and 'GSUB'.
        --drop-tables=DSIG
            * Only drop the 'DSIG' table, keep all others.
        --drop-tables=
            * Keep all tables.
  --no-subset-tables+=<table>[,<table>...]
      Add to the set of tables that will not be subsetted.
      By default, the following tables are included in this list, as
      they do not need subsetting (ignore the fact that 'loca' is listed
      here): 'gasp', 'head', 'hhea', 'maxp', 'vhea', 'OS/2', 'loca',
      'name', 'cvt ', 'fpgm', 'prep', 'VMDX', 'DSIG' and 'CPAL'.
      By default, tables that the tool does not know how to subset and are not
      specified here will be dropped from the font, unless --passthrough-tables
      option is passed.
      Example:
         --no-subset-tables+=FFTM
            * Keep 'FFTM' table in the font by preventing subsetting.
  --passthrough-tables
      Do not drop tables that the tool does not know how to subset.
  --no-passthrough-tables
      Tables that the tool does not know how to subset and are not specified
      in --no-subset-tables will be dropped from the font. [default]