E121: Undefined variable and E15: Invalid expression errors

[ghost]

I get this error when I set g:gruvbox_plugin_hi_groups to 1:

Error detected while processing /home/???/.local/share/nvim/bundle/vim-gruvbox8/colors/gruvbox8_hard.vim:
line  235:
E121: Undefined variable: #504945
E15: Invalid expression: #504945
line  850:
E121: Undefined variable: #d5c4a1
E15: Invalid expression: #d5c4a1

I think you must use strings in the templates.
Example _plugins.colortemplate line: 73:

let g:indentLine_color_gui = '@guibg2'

[lifepillar]

Good catch, thanks!

One of the reasons I created gruvbox8 is to avoid using filetype and plugin specific highlight groups, so that part has not been tested much. Thanks again!