\[FilledCircle] (Mathematica Character Name)

Unicode: 25CF. Alias: Esc fci Esc. Letter-like form. Used as a dingbat.

\[FilledRectangle] (Mathematica Character Name)

Unicode: 25AE. Letter-like form. Used in mathematics to indicate the end of a proof.

\[FilledSmallCircle] (Mathematica Character Name)

Unicode: F750. Alias: Esc fsci Esc. Letter-like form. Used as a dingbat.

\[FilledSmallSquare] (Mathematica Character Name)

Unicode: 25FC. Alias: Esc fssq Esc. Letter-like form. Used as a dingbat. Not the same as \[SelectionPlaceholder].

\[FilledVerySmallSquare] (Mathematica Character Name)

Unicode: 25AA. Alias: Esc fvssq Esc. Letter-like form. Used as a dingbat.

\[GrayCircle] (Mathematica Character Name)

Unicode: F753. Alias: Esc gci Esc. Letter-like form. Used as a dingbat. Generated internally by Mathematica, rather than being an explicit font character.

\[GraySquare] (Mathematica Character Name)

Unicode: F752. Alias: Esc gsq Esc. Letter-like form. Used as a dingbat. Generated internally by Mathematica, rather than being an explicit font character.

\[IndentingNewLine] (Mathematica Character Name)

Unicode: F3A3. Alias: Esc nl Esc. Raw operator. Forces a line break in an expression, maintaining the correct indenting level based on the environment of the line break.

\[KernelIcon] (Mathematica Character Name)

Unicode: F756. Letter-like form. Icon typically used for the Mathematica kernel. This icon is a trademark of Wolfram Research.

\[LeftArrowBar] (Mathematica Character Name)

Unicode: 21E4. Infix arrow operator. x ⇤ y is by default interpreted as LeftArrowBar[x,y]. Sometimes used to indicate a backtab. Extensible character.