Neovim has no highlight

[sokinpui]

I have found neovim has no highlight before confirm the surroundings object, while vim have.
Neovim: text selected with saiw

Vim: text selected with saiw

Neovim version

NVIM v0.9.1
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3
Compilation: /usr/bin/gcc -O2 -g -Og -g -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wshadow -Wconversion -Wvla -Wdouble-promotion -Wmissing-noreturn -Wmissing-format-attribute -Wmissing-prototypes -fno-common -Wno-unused-result -Wimplicit-fallthrough -fdiagnostics-color=auto -fstack-protector-strong -DUNIT_TESTING -DINCLUDE_GENERATED_DECLARATIONS -D_GNU_SOURCE -I/usr/include/luajit-2.1 -I/usr/include -I/usr/include/luv -I/builddir/build/BUILD/neovim-0.9.1/redhat-linux-build/src/nvim/auto -I/builddir/build/BUILD/neovim-0.9.1/redhat-linux-build/include -I/builddir/build/BUILD/neovim-0.9.1/redhat-linux-build/cmake.config -I/builddir/build/BUILD/neovim-0.9.1/src -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include -I/usr/include

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/usr/share/nvim"

Run :checkhealth for more info

[sokinpui]

I find that Is the color of diff mode difficult to see, I will closed the issue