strange text background

[JoveYu]

but other colorscheme

[PascalZh]

Change line 519~522:

exe "hi! Pmenu"          .s:fmt_none   .s:fg_base0  .s:bg_base02  .s:fmt_revbb
exe "hi! PmenuSel"       .s:fmt_none   .s:fg_base01 .s:bg_base2   .s:fmt_revbb
exe "hi! PmenuSbar"      .s:fmt_none   .s:fg_base2  .s:bg_base0   .s:fmt_revbb
exe "hi! PmenuThumb"     .s:fmt_none   .s:fg_base0  .s:bg_base03  .s:fmt_revbb

into

exe "hi! Pmenu"          .s:fmt_none   .s:fg_base0  .s:bg_base02 
exe "hi! PmenuSel"       .s:fmt_none   .s:fg_base01 .s:bg_base2
exe "hi! PmenuSbar"      .s:fmt_none   .s:fg_base2  .s:bg_base0
exe "hi! PmenuThumb"     .s:fmt_none   .s:fg_base0  .s:bg_base03

will solve your problem.
Now floatwin in Neovim is highlighted as Pmenu. However, Neosolarized set Pmenu highlight group in reverse color.

[JoveYu]

@PascalZh it works on my fork repo, thank you

[JoveYu]

@PascalZh The background color is too similar, is there any other solution?

[PascalZh]

@JoveYu 不知道，详情请help :hi，总之改一下那四句话就可以了