Untitled

\begin{figure}[htbp]
\centering
\subfloat[TL]{\includegraphics[width=0.49\columnwidth]{tl_subplot.pdf}}\hfill
\subfloat[TL+GRL]{\includegraphics[width=0.49\columnwidth]{tl_grl_subplot.pdf}}

\vspace{-0.2em}
\includegraphics[width=0.92\columnwidth]{legend_subplot.pdf}

\caption{Fake FF++ t-SNE embeddings for TL-based \textit{Trident} variants.}
\label{fig:tsne_cross_dataset_tl}
\vspace{-0.5em}
\end{figure}