Envelope icons: three prompt comparisons

Six icons generated with Classic on September 5, 2026. Each pair changes one prompt instruction; the resulting shapes and colors can also vary. These original SVGs have no manual path or palette changes.

stroke-base

A simple outline envelope icon for a messaging button, centered square composition, teal outline, no text, transparent background.

24 CSS pixels

stroke-base on white
stroke-base on dark

48 CSS pixels

stroke-base on white
stroke-base on dark

128 CSS pixels

stroke-base on white
stroke-base on dark

stroke-revised

A simple outline envelope icon for a messaging button, centered square composition, teal outline, no text, transparent background. Use a bold outline that remains clearly visible at 24 pixels.

24 CSS pixels

stroke-revised on white
stroke-revised on dark

48 CSS pixels

stroke-revised on white
stroke-revised on dark

128 CSS pixels

stroke-revised on white
stroke-revised on dark

palette-base

A simple outline envelope icon for a messaging button, centered square composition, one outline color, no text, transparent background.

24 CSS pixels

palette-base on white
palette-base on dark

48 CSS pixels

palette-base on white
palette-base on dark

128 CSS pixels

palette-base on white
palette-base on dark

palette-revised

A simple outline envelope icon for a messaging button, centered square composition, one outline color, no text, transparent background. Use exactly teal #0f766e as the only outline color.

24 CSS pixels

palette-revised on white
palette-revised on dark

48 CSS pixels

palette-revised on white
palette-revised on dark

128 CSS pixels

palette-revised on white
palette-revised on dark

background-base

A simple outline envelope icon for a messaging button, centered square composition, teal outline, no text, with a pale gray background.

24 CSS pixels

background-base on white
background-base on dark

48 CSS pixels

background-base on white
background-base on dark

128 CSS pixels

background-base on white
background-base on dark

background-revised

A simple outline envelope icon for a messaging button, centered square composition, teal outline, no text, with a transparent background and no background shape.

24 CSS pixels

background-revised on white
background-revised on dark

48 CSS pixels

background-revised on white
background-revised on dark

128 CSS pixels

background-revised on white
background-revised on dark