* lisp/textmodes/tex-mode.el (tex--prettify-symbols-alist): Add pretty
symbols for \qquad and \varrho.
("\\prod" . ?∏)
("\\propto" . ?∝)
("\\qed" . ?∎)
+ ("\\qquad" . ?⧢)
("\\quad" . ?␣)
("\\rangle" . 10217) ; Literal ?⟩ breaks indentation.
("\\rbrace" . ?})
("\\vDash" . ?⊨)
("\\varprime" . ?′)
("\\varpropto" . ?∝)
+ ("\\varrho" . ?ϱ)
;; ("\\varsigma" ?ς) ;FIXME: Looks reversed with the non\var.
("\\vartriangleleft" . ?⊲)
("\\vartriangleright" . ?⊳)