Robot

In the Font Editor

With a font open, Robot reads its glyphs as grids of pixels on the font's metric lines, and looks at text set in the font to judge spacing and rhythm: "draw a lowercase g that matches the o", "tighten the spacing of the capitals", "kern AV and To".

AreaFor example
------
GlyphsDraw and redraw glyphs, move or flip their pixels, set their advance; variants and layers
SpacingKerning, auto-kerning pairs, placement between pairs, letter spacing
StructureMetrics, the name, description and info (website, copyright, licence, version), components, width variants, contextual sequences, guide grids
HanRead reference drawings of a character, and build one from the font's components
CheckingCoverage of each charset, and which characters are drawn or empty
The benchOpen a glyph or a specimen to show you, save a version before a large change, export the font

Asked for ideas for a glyph, Robot shows designs in the chat beside the glyph as it is; press Use this on the one you want.