Tested on amd64, works fine.

Index: emulators/stella/Makefile
===================================================================
RCS file: /cvs/ports/emulators/stella/Makefile,v
retrieving revision 1.46
diff -u -p -u -r1.46 Makefile
--- emulators/stella/Makefile 23 Jan 2024 06:06:14 -0000 1.46
+++ emulators/stella/Makefile 26 Aug 2025 23:45:05 -0000
@@ -1,6 +1,6 @@
 COMMENT = Atari 2600 VCS emulator

-V = 6.7.1
+V = 7.0
 DISTNAME = stella-$V
 CATEGORIES = emulators
 EXTRACT_SUFX = -src.tar.xz
Index: emulators/stella/distinfo
===================================================================
RCS file: /cvs/ports/emulators/stella/distinfo,v
retrieving revision 1.31
diff -u -p -u -r1.31 distinfo
--- emulators/stella/distinfo 23 Jan 2024 06:06:14 -0000 1.31
+++ emulators/stella/distinfo 26 Aug 2025 23:45:05 -0000
@@ -1,2 +1,2 @@
-SHA256 (stella-6.7.1-src.tar.xz) = nviA34fy0//r+62RUkfR/Vo6ykHf1qdU3PehQqyCZ1I=
-SIZE (stella-6.7.1-src.tar.xz) = 10277788
+SHA256 (stella-7.0-src.tar.xz) = 0/3XpOykgx9BufTKOViVAtAcYSruAQOVwnoIgCmtwLw=
+SIZE (stella-7.0-src.tar.xz) = 13685208
Index: emulators/stella/pkg/PLIST
===================================================================
RCS file: /cvs/ports/emulators/stella/pkg/PLIST,v
retrieving revision 1.21
diff -u -p -u -r1.21 PLIST
--- emulators/stella/pkg/PLIST 17 Jun 2022 08:02:14 -0000 1.21
+++ emulators/stella/pkg/PLIST 26 Aug 2025 23:45:05 -0000
@@ -2,7 +2,6 @@
 share/doc/stella/
 share/doc/stella/debugger.html
 share/doc/stella/graphics/
-share/doc/stella/graphics/Stella_icon.png
 share/doc/stella/graphics/cheat.png
 share/doc/stella/graphics/chucky_cheese.png
 share/doc/stella/graphics/circuit.png
@@ -44,6 +43,7 @@ share/doc/stella/graphics/navigation_but
 share/doc/stella/graphics/open_help.png
 share/doc/stella/graphics/options.png
 share/doc/stella/graphics/options_audio.png
+share/doc/stella/graphics/options_bezels.png
 share/doc/stella/graphics/options_developer.png
 share/doc/stella/graphics/options_developer_debugger.png
 share/doc/stella/graphics/options_developer_emulation.png
@@ -73,11 +73,11 @@ share/doc/stella/graphics/rominfo_1x_lar
 share/doc/stella/graphics/rominfo_1x_small.png
 share/doc/stella/graphics/rominfo_2x_small.png
 share/doc/stella/graphics/secret_quest.png
-share/doc/stella/graphics/show_all.png
+share/doc/stella/graphics/select_random_rom.png
 share/doc/stella/graphics/show_current_dir.png
-share/doc/stella/graphics/show_roms.png
 share/doc/stella/graphics/show_sub_dirs.png
 share/doc/stella/graphics/space_invaders.png
+share/doc/stella/graphics/stella_icon.png
 share/doc/stella/graphics/timemachine.png
 share/doc/stella/index.html
 share/doc/stella/index_r77.html