\begin{tabular}{lccccc}
\toprule[1.1pt]
\multirow{2}{*}{System Name} & \multicolumn{4}{c}{Supported Modality} & \multirow{2}{*}{Supported Training Approaches}  \\ \cmidrule(r){2-5}
& Text       & Image       & Video   & Audio    &  \\ \midrule
\href{https://github.com/huggingface/trl}{TRL} & \CheckmarkBold  & \CheckmarkBold &\XSolidBrush   &  \CheckmarkBold  & Reward Modeling, PPO, GRPO, DPO, Online-DPO, etc.  \\
\href{https://github.com/OpenRLHF/OpenRLHF}{OpenRLHF}&            \CheckmarkBold &  \XSolidBrush   &  \XSolidBrush      &        \XSolidBrush     &  Sft, Reject Sampling, PPO, GRPO, DPO, KTO, etc.\\
\href{https://github.com/hiyouga/EasyR1}{EasyR1}&  \CheckmarkBold &  \CheckmarkBold   &   \XSolidBrush     &      \XSolidBrush       & GRPO, Reinforce++, Remax, RLOO, etc. \\
\href{https://github.com/volcengine/verl}{veRL}&  \CheckmarkBold   &  \XSolidBrush    &  \XSolidBrush       &         \XSolidBrush     & GRPO, PPO, Remax, RLOO, SFT, etc. \\
\href{https://github.com/OpenRLHF/OpenRLHF-M}{OpenRLHF-M}&         \XSolidBrush    &   \CheckmarkBold   &    \XSolidBrush     &    \XSolidBrush          & PPO, GRPO, RLOO, Online-RLHF, Reject-Sampling, etc. \\
\href{https://github.com/PKU-Alignment/align-anything}{Align-Anything}&    \CheckmarkBold         & \CheckmarkBold    &     \CheckmarkBold    &      \CheckmarkBold        &PPO, GRPO, DPO,KTO, ORPO, etc.	  \\
\bottomrule[1.1pt]
\end{tabular}