Suggestions for coloredtheorem

The following packages have something in common with the package coloredtheorem. The packages are ordered in decreasing similarity.

Package boites: Boxes that may break across pages
Package mdframed: Framed environments that can split at page boundaries
Package framed: Breakable framed and shaded boxes
Package tcolorbox: Coloured boxes, for LaTeX examples and theorems, etc.
Package thmbox: Decorate theorem statements
Package shadethm: Theorem environments that are shaded
Package adjustbox: Graphics package-alike macros for general boxes
Package callouts-box: Provides visually appealing callout boxes
Package shadbox: Shade the background of any box
Package roundbox: Round boxes in LaTeX
Package crbox: Boxes with crossed corners
Package ghab: Typeset ghab boxes in LaTeX
Package tram: Typeset tram boxes in LaTeX
Package postit: A LaTeX package for displaying Post-it notes
Package create-theorem: Initializing and configuring theorem-like environments, with multilingual support
Package creationboites: Macros to create simple tcolorbox with some customizations
Package phfthm: Goodies for theorems and proofs
Package inkpaper: A mathematical paper template
Package callout-itembox: A LaTeX package for colored callout item/numbered text boxes with a tinted
Package linkedthm: Hyperlinked theorem–proof environments for LaTeX
Package nccthm: Another theorem environment
Package statementsp: Theorem and proposition boxes with preview and recall functions
Package reptheorem: Repetition of theorem environments
Package codebox: Highlighted source code in a fancy box
Package longfbox: Draw framed boxes with standard CSS attributes that can break over multiple pages
Package contour: Print a coloured contour around text
Package framedsyntax: Typeset the syntax of commands and environments within coloured boxes
Package autobreak: Simple line breaking of long formulae
Package thmtools: Extensions to theorem environments
Package thmlist: A LaTeX package for adding theorem environments quickly
Package thrmappendix: Theorems, lemmas, etc., in appendix