feat(cpicker): add tools#cpicker layer

autoload/SpaceVim.vim

@@ -1771,6 +1771,11 @@ let g:_spacevim_mappings_space.d = {'name' : '+Debug'}
 let g:_spacevim_mappings_space.e = {'name' : '+Errors/Encoding'}
 let g:_spacevim_mappings_space.B = {'name' : '+Global buffers'}
 let g:_spacevim_mappings_space.f.v = {'name' : '+Vim/SpaceVim'}
+let g:_spacevim_mappings_space.i = {'name' : '+Insertion'}
+let g:_spacevim_mappings_space.i = {'name' : '+Insertion'}
+let g:_spacevim_mappings_space.i.l = {'name' : '+Lorem-ipsum'}
+let g:_spacevim_mappings_space.i.p = {'name' : '+Passwords/Picker'}
+let g:_spacevim_mappings_space.i.U = {'name' : '+UUID'}
 
 function! SpaceVim#end() abort
   let &tabline = ' '

autoload/SpaceVim/layers/denite.vim

@@ -35,7 +35,6 @@ let s:filename = expand('<sfile>:~')
 let s:lnum = expand('<slnum>') + 2
 function! SpaceVim#layers#denite#config() abort
 
-  let g:_spacevim_mappings_space.i = {'name' : '+Insertion'}
   call SpaceVim#mapping#space#def('nnoremap', ['i', 'u'], 'Denite unicode', 'search-and-insert-unicode', 1)
   if g:spacevim_snippet_engine ==# 'neosnippet'
     call SpaceVim#mapping#space#def('nnoremap', ['i', 's'], 'Denite neosnippet', 'insert snippets', 1)

autoload/SpaceVim/layers/edit.vim

@@ -321,10 +321,6 @@ function! SpaceVim#layers#edit#config() abort
   call SpaceVim#mapping#space#def('nmap', ['x', 'g', 'n'], '<Plug>(grammarous-move-to-next-error)', 'move-cursor-to-next-error', 0, 1)
   call SpaceVim#mapping#space#def('nmap', ['x', 'g', 'p'], '<Plug>(grammarous-move-to-previous-error)', 'move-cursor-to-previous-error', 0, 1)
 
-  let g:_spacevim_mappings_space.i = {'name' : '+Insertion'}
-  let g:_spacevim_mappings_space.i.l = {'name' : '+Lorem-ipsum'}
-  let g:_spacevim_mappings_space.i.p = {'name' : '+Passwords'}
-  let g:_spacevim_mappings_space.i.U = {'name' : '+UUID'}
   call SpaceVim#mapping#space#def('nnoremap', ['i', 'p', 1], 'call call('
         \ . string(s:_function('s:insert_simple_password')) . ', [])',
         \ 'insert-simple-password', 1)

autoload/SpaceVim/layers/leaderf.vim

@@ -243,7 +243,6 @@ function! SpaceVim#layers#leaderf#config() abort
         \  'after_enter' : string(s:_function('s:init_leaderf_win', 1))[10:-3]
         \ }
 
-  let g:_spacevim_mappings_space.i = {'name' : '+Insertion'}
   call SpaceVim#mapping#space#def('nnoremap', ['i', 'u'], 'Leaderf unicode', 'search-and-insert-unicode', 1)
   if g:spacevim_snippet_engine ==# 'neosnippet'
     call SpaceVim#mapping#space#def('nnoremap', ['i', 's'], 'Leaderf neosnippet', 'insert snippets', 1)

autoload/SpaceVim/layers/tools/cpicker.vim

@@ -0,0 +1,50 @@
+"=============================================================================
+" cpicker.vim
+" Copyright (c) 2016-2019 Wang Shidong & Contributors
+" Author: Wang Shidong < wsdjeg@outlook.com >
+" URL: https://spacevim.org
+" License: GPLv3
+"=============================================================================
+
+""
+" @section tools#cpicker, layers-tools-cpicker
+" @parentsection layers
+" The `tools#cpicker` layer provides a color picker.
+" this layer is disabled by default, to enable this layer, add following
+" snippet to your SpaceVim configuration file.
+" >
+"   [[layers]]
+"     name = 'tools#cpicker'
+" <
+"
+" @subsection Key bindings
+" >
+"   Key             Function
+"   ---------------------------------------------
+"   SPC i p c       open color picker
+" <
+
+function! SpaceVim#layers#tools#cpicker#plugins() abort
+
+  return [
+        \ [g:_spacevim_root_dir . 'bundle/cpicker.nvim', {'merged' : 0, 'loadconf' : 1, 'on_cmd' : 'Cpicker'}],
+        \ ]
+
+endfunction
+
+function! SpaceVim#layers#tools#cpicker#config() abort
+
+  call SpaceVim#mapping#space#def('nnoremap', ['i', 'p', 'c'], 'Cpicker all',
+        \ 'insert-color-with-picker', 1)
+
+endfunction
+
+function! SpaceVim#layers#tools#cpicker#set_variable(var) abort
+  let g:cpicker_default_format = get(a:var, 'default_format', 'hex')
+endfunction
+
+function! SpaceVim#layers#tools#cpicker#loadeable() abort
+
+  return has('nvim-0.10.0')
+
+endfunction

autoload/SpaceVim/layers/unite.vim

@@ -82,7 +82,6 @@ function! SpaceVim#layers#unite#config() abort
   call SpaceVim#mapping#space#def('nnoremap', ['i', 'u'], 'Unite unicode', 'search-and-insert-unicode', 1)
   call SpaceVim#mapping#space#def('nnoremap', ['f', 'r'], 'Unite file_mru', 'open-recent-file', 1)
   call SpaceVim#mapping#space#def('nnoremap', ['r', 'l'], 'Unite resume', 'resume unite buffer', 1)
-  let g:_spacevim_mappings_space.i = {'name' : '+Insertion'}
   call SpaceVim#mapping#space#def('nnoremap', ['i', 'u'], 'Unite unicode', 'search-and-insert-unicode', 1)
   if g:spacevim_snippet_engine ==# 'neosnippet'
     call SpaceVim#mapping#space#def('nnoremap', ['i', 's'], 'Unite neosnippet', 'insert snippets', 1)

bundle/cpicker.nvim/lua/cpicker.lua

@@ -0,0 +1,289 @@
+--=============================================================================
+-- cpicker.lua
+-- Copyright (c) 2019-2024 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+local M = {}
+
+local winid
+local bufnr
+
+local hi = require('spacevim.api.vim.highlight')
+local color = require('spacevim.api.color')
+
+local red = 0 -- [0, 255]
+local green = 0 -- [0, 255]
+local blue = 0 -- [0, 255]
+local hue = 0 -- [0, 360]
+local saturation = 0 -- [0, 100%]
+local lightness = 0 -- [0, 100%]
+local enabled_formats = {}
+local increase_keys = {}
+local reduce_keys = {}
+
+local function decimalToHex(decimal)
+  local hex = ''
+  local hexChars = '0123456789ABCDEF'
+  while decimal > 0 do
+    local mod = decimal % 16
+    hex = string.sub(hexChars, mod + 1, mod + 1) .. hex
+    decimal = math.floor(decimal / 16)
+  end
+  if hex == '' then
+    return '00'
+  elseif #hex == 1 then
+    return '0' .. hex
+  else
+    return hex
+  end
+end
+
+local function generate_bar(n, char, m)
+  return string.rep(char, math.floor(24 * n / (m or 255)))
+end
+local function increase_rgb_red()
+  if red < 255 then
+    red = red + 1
+    hue, saturation, lightness = color.rgb2hsl(red, green, blue)
+  end
+end
+local function reduce_rgb_red()
+  if red > 0 then
+    red = red - 1
+    hue, saturation, lightness = color.rgb2hsl(red, green, blue)
+  end
+end
+local function increase_rgb_green()
+  if green < 255 then
+    green = green + 1
+    hue, saturation, lightness = color.rgb2hsl(red, green, blue)
+  end
+end
+local function reduce_rgb_green()
+  if green > 0 then
+    green = green - 1
+    hue, saturation, lightness = color.rgb2hsl(red, green, blue)
+  end
+end
+
+local function increase_rgb_blue()
+  if blue < 255 then
+    blue = blue + 1
+    hue, saturation, lightness = color.rgb2hsl(red, green, blue)
+  end
+end
+
+local function reduce_rgb_blue()
+  if blue > 0 then
+    blue = blue - 1
+    hue, saturation, lightness = color.rgb2hsl(red, green, blue)
+  end
+end
+
+local function increase_hsl_h()
+  if hue < 360 then
+    hue = hue + 1
+    red, green, blue = color.hsl2rgb(hue, saturation, lightness)
+  end
+end
+local function reduce_hsl_h()
+  if hue >= 1 then
+    hue = hue - 1
+  elseif hue > 0 then
+    hue = 0
+  end
+  red, green, blue = color.hsl2rgb(hue, saturation, lightness)
+end
+local function increase_hsl_s()
+  if saturation <= 0.99 then
+    saturation = saturation + 0.01
+  elseif saturation < 1 then
+    saturation = 1
+  end
+  red, green, blue = color.hsl2rgb(hue, saturation, lightness)
+end
+local function reduce_hsl_s()
+  if saturation >= 0.01 then
+    saturation = saturation - 0.01
+  elseif saturation > 0 and saturation < 0.01 then
+    saturation = 0
+  end
+  red, green, blue = color.hsl2rgb(hue, saturation, lightness)
+end
+local function increase_hsl_l()
+  if lightness <= 0.99 then
+    lightness = lightness + 0.01
+  elseif lightness < 1 then
+    lightness = 1
+  end
+  red, green, blue = color.hsl2rgb(hue, saturation, lightness)
+end
+local function reduce_hsl_l()
+  if lightness >= 0.01 then
+    lightness = lightness - 0.01
+  elseif lightness > 0 and lightness < 0.01 then
+    lightness = 0
+  end
+  red, green, blue = color.hsl2rgb(hue, saturation, lightness)
+end
+
+local function buf_text()
+  local rst = {}
+  local r_bar = generate_bar(red, '+')
+  local g_bar = generate_bar(green, '+')
+  local b_bar = generate_bar(blue, '+')
+  local h_bar = generate_bar(hue, '+', 360)
+  local s_bar = generate_bar(saturation, '+', 1)
+  local l_bar = generate_bar(lightness, '+', 1)
+  if enabled_formats.all or enabled_formats.rgb then
+    table.insert(rst, 'R:    ' .. string.format('%4s', red) .. ' ' .. r_bar)
+    increase_keys[#rst] = increase_rgb_red
+    reduce_keys[#rst] = reduce_rgb_red
+    table.insert(rst, 'G:    ' .. string.format('%4s', green) .. ' ' .. g_bar)
+    increase_keys[#rst] = increase_rgb_green
+    reduce_keys[#rst] = reduce_rgb_green
+    table.insert(rst, 'B:    ' .. string.format('%4s', blue) .. ' ' .. b_bar)
+    increase_keys[#rst] = increase_rgb_blue
+    reduce_keys[#rst] = reduce_rgb_blue
+  end
+  if enabled_formats.all or enabled_formats.hsl then
+    table.insert(rst, 'H:    ' .. string.format('%4s', math.floor(hue + 0.5)) .. ' ' .. h_bar)
+    increase_keys[#rst] = increase_hsl_h
+    reduce_keys[#rst] = reduce_hsl_h
+    table.insert(
+      rst,
+      'S:    ' .. string.format('%3s', math.floor(saturation * 100 + 0.5)) .. '% ' .. s_bar
+    )
+    increase_keys[#rst] = increase_hsl_s
+    reduce_keys[#rst] = reduce_hsl_s
+    table.insert(
+      rst,
+      'L:    ' .. string.format('%3s', math.floor(lightness * 100 + 0.5)) .. '% ' .. l_bar
+    )
+    increase_keys[#rst] = increase_hsl_l
+    reduce_keys[#rst] = reduce_hsl_l
+  end
+  table.insert(rst, '')
+  local r = decimalToHex(red)
+  local g = decimalToHex(green)
+  local b = decimalToHex(blue)
+  if not vim.g.cpicker_default_format or vim.g.cpicker_default_format == 'hex' then
+    table.insert(rst, '   =========' .. '  #' .. r .. g .. b)
+  elseif vim.g.cpicker_default_format == 'rgb' then
+    table.insert(rst, '   =========' .. string.format('  rgb(%s, %s, %s)', red, green, blue))
+  elseif vim.g.cpicker_default_format == 'hsl' then
+    table.insert(
+      rst,
+      '   ========='
+        .. string.format(
+          '  hsl(%s, %s%%, %s%%)',
+          math.floor(hue + 0.5),
+          math.floor(saturation * 100 + 0.5),
+          math.floor(lightness * 100 + 0.5)
+        )
+    )
+  elseif vim.g.cpicker_default_format == 'all' then
+    table.insert(rst, '   =========' .. '  #' .. r .. g .. b)
+    table.insert(rst, '   =========' .. string.format('  rgb(%s, %s, %s)', red, green, blue))
+    table.insert(
+      rst,
+      '   ========='
+        .. string.format(
+          '  hsl(%s, %s%%, %s%%)',
+          math.floor(hue + 0.5),
+          math.floor(saturation * 100 + 0.5),
+          math.floor(lightness * 100 + 0.5)
+        )
+    )
+  end
+  local color_hi = '#' .. r .. g .. b
+  local normal_bg = hi.group2dict('Normal').guibg
+  hi.hi({
+    name = 'SpaceVimPickerCode',
+    guifg = color_hi,
+    guibg = normal_bg,
+  })
+  hi.hi({
+    name = 'SpaceVimPickerNoText',
+    guifg = normal_bg,
+    guibg = normal_bg,
+  })
+  hi.hi({
+    name = 'SpaceVimPickerBackground',
+    guibg = color_hi,
+    guifg = color_hi,
+  })
+  return rst
+end
+
+local function increase()
+  if increase_keys[vim.fn.line('.')] then
+    increase_keys[vim.fn.line('.')]()
+  end
+  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, buf_text())
+end
+
+local function reduce()
+  if reduce_keys[vim.fn.line('.')] then
+    reduce_keys[vim.fn.line('.')]()
+  end
+  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, buf_text())
+end
+
+M.picker = function(formats)
+  enabled_formats = {}
+  for _, v in ipairs(formats) do
+    enabled_formats[v] = true
+  end
+  if not bufnr or not vim.api.nvim_win_is_valid(bufnr) then
+    bufnr = vim.api.nvim_create_buf(false, false)
+    vim.api.nvim_set_option_value('buftype', 'nofile', {
+      buf = bufnr,
+    })
+    vim.api.nvim_set_option_value('filetype', 'spacevim_cpicker', {
+      buf = bufnr,
+    })
+    vim.api.nvim_set_option_value('bufhidden', 'wipe', {
+      buf = bufnr,
+    })
+    vim.api.nvim_buf_set_keymap(bufnr, 'n', 'l', '', {
+      callback = increase,
+    })
+    vim.api.nvim_buf_set_keymap(bufnr, 'n', 'h', '', {
+      callback = reduce,
+    })
+    vim.api.nvim_buf_set_keymap(bufnr, 'n', '<Right>', '', {
+      callback = increase,
+    })
+    vim.api.nvim_buf_set_keymap(bufnr, 'n', '<Left>', '', {
+      callback = reduce,
+    })
+    vim.api.nvim_buf_set_keymap(bufnr, 'n', 'q', '', {
+      callback = function()
+        vim.api.nvim_win_close(winid, true)
+      end,
+    })
+  end
+  if not winid or not vim.api.nvim_win_is_valid(winid) then
+    winid = vim.api.nvim_open_win(bufnr, true, {
+      relative = 'cursor',
+      border = 'single',
+      width = 40,
+      height = 10,
+      row = 1,
+      col = 1,
+    })
+  end
+  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, buf_text())
+  vim.api.nvim_set_option_value('number', false, {
+    win = winid,
+  })
+  vim.api.nvim_set_option_value('winhighlight', 'NormalFloat:Normal,FloatBorder:WinSeparator', {
+    win = winid,
+  })
+end
+
+return M

bundle/cpicker.nvim/plugin/cpicker.lua

@@ -0,0 +1,17 @@
+--=============================================================================
+-- cpicker.lua
+-- Copyright (c) 2019-2024 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+if vim.api.nvim_create_user_command then
+  local function complete(...)
+    return {'all', 'rgb', 'hsl'}
+  end
+  vim.api.nvim_create_user_command('Cpicker', function(opt)
+    require('cpicker').picker(opt.fargs)
+
+  end, { nargs = '*', complete = complete })
+end

bundle/cpicker.nvim/syntax/spacevim_cpicker.vim

@@ -0,0 +1,13 @@
+if exists('b:current_syntax') && b:current_syntax ==# 'spacevim_cpicker'
+  finish
+endif
+let b:current_syntax = 'spacevim_cpicker'
+syntax case ignore
+
+syn match ProcessBar /[?=+]\+/
+syn match SpaceVimPickerCode /#[0123456789ABCDEF]\+\|rgb(\d\+,\s\d\+,\s\d\+)\|hsl(\d\+,\s\d\+%,\s\d\+%)/
+syn match SpaceVimPickerBackground /=\+/
+
+highlight ProcessBar ctermfg=Gray ctermbg=Gray guifg=Gray guibg=Gray
+
+

doc/SpaceVim.txt

@@ -243,14 +243,15 @@ CONTENTS                                                   *SpaceVim-contents*
     139. telescope................................ |SpaceVim-layers-telescope|
     140. test.......................................... |SpaceVim-layers-test|
     141. tmux.......................................... |SpaceVim-layers-tmux|
-    142. tools#dash.............................. |SpaceVim-layers-tools-dash|
+    142. tools#cpicker........................ |SpaceVim-layers-tools-cpicker|
-    143. tools#mpv................................ |SpaceVim-layers-tools-mpv|
+    143. tools#dash.............................. |SpaceVim-layers-tools-dash|
-    144. tools#screensaver................ |SpaceVim-layers-tools-screensaver|
+    144. tools#mpv................................ |SpaceVim-layers-tools-mpv|
-    145. tools#zeal.............................. |SpaceVim-layers-tools-zeal|
+    145. tools#screensaver................ |SpaceVim-layers-tools-screensaver|
-    146. treesitter.............................. |SpaceVim-layers-treesitter|
+    146. tools#zeal.............................. |SpaceVim-layers-tools-zeal|
-    147. ui.............................................. |SpaceVim-layers-ui|
+    147. treesitter.............................. |SpaceVim-layers-treesitter|
-    148. unite........................................ |SpaceVim-layers-unite|
+    148. ui.............................................. |SpaceVim-layers-ui|
-    149. xmake........................................ |SpaceVim-layers-xmake|
+    149. unite........................................ |SpaceVim-layers-unite|
+    150. xmake........................................ |SpaceVim-layers-xmake|
 7. Usage..................................................... |SpaceVim-usage|
     1. Editing....................................... |SpaceVim-usage-editing|
     2. Error handling......................... |SpaceVim-usage-error-handling|
@@ -6290,6 +6291,25 @@ MAPPINGS
   <C-l>     normal      Switch to vim/tmux pane in right direction
 <
 
+==============================================================================
+TOOLS#CPICKER                                  *SpaceVim-layers-tools-cpicker*
+
+The `tools#cpicker` layer provides a color picker. this layer is disabled by
+default, to enable this layer, add following snippet to your SpaceVim
+configuration file.
+>
+  [[layers]]
+    name = 'tools#cpicker'
+<
+
+KEY BINDINGS
+
+>
+  Key             Function
+  ---------------------------------------------
+  SPC i p c       open color picker
+<
+
 ==============================================================================
 TOOLS#DASH                                        *SpaceVim-layers-tools-dash*
 

docs/cn/layers/tools/cpicker.md

@@ -0,0 +1,34 @@
+---
+title: "SpaceVim tools#cpicker 模块"
+description: "这一模块为 SpaceVim 提供了调色板功能，可以快速调配颜色。"
+lang: zh
+---
+
+# [可用模块](../../) >> tools#cpicker
+
+<!-- vim-markdown-toc GFM -->
+
+- [模块描述](#模块描述)
+- [启用模块](#启用模块)
+- [快捷键](#快捷键)
+
+<!-- vim-markdown-toc -->
+
+## 模块描述
+
+该模块为 SpaceVim 提供了调色板功能, 需要 Neovim 0.10+。
+
+## 启用模块
+
+tools#mpv 模块默认并未启用，如果需要启用该模块，需要在配置文件里面加入：
+
+```toml
+[[layers]]
+  name = "tools#cpicker"
+```
+
+## 快捷键
+
+| 快捷键      | 功能描述   |
+| ----------- | ---------- |
+| `SPC i p c` | 打开调色板 |

docs/cn/layers/tools/mpv.md

@@ -4,7 +4,7 @@ description: "这一模块为 SpaceVim 提供了mpv支持，可快速查找光
 lang: zh
 ---
 
-# [可用模块](../) >> tools#mpv
+# [可用模块](../../) >> tools#mpv
 
 <!-- vim-markdown-toc GFM -->
 

docs/layers/tools/cpicker.md

@@ -0,0 +1,33 @@
+---
+title: "SpaceVim cpicker layer"
+description: "This layer provides color picker for SpaceVim"
+---
+
+# [Available Layers](../../) >> tools#cpicker
+
+<!-- vim-markdown-toc GFM -->
+
+- [Description](#description)
+- [Install](#install)
+- [Key bindings](#key-bindings)
+
+<!-- vim-markdown-toc -->
+
+## Description
+
+This layer provides color picker for SpaceVim. It requires neovim 0.10+.
+
+## Install
+
+To use this configuration layer, add it to your `~/.SpaceVim.d/init.toml`.
+
+```vim
+[[layers]]
+name = "tools#cpicker"
+```
+
+## Key bindings
+
+| Key Binding | Description       |
+| ----------- | ----------------- |
+| `SPC i p c` | open color picker |

lua/spacevim/api/color.lua

@@ -0,0 +1,84 @@
+--=============================================================================
+-- color.lua ---
+-- Copyright (c) 2019-2024 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+local color = {}
+
+-- 参考： https://blog.csdn.net/Sunshine_in_Moon/article/details/45131285
+
+color.rgb2hsl = function(r, g, b)
+  r = r / 255
+  g = g / 255
+  b = b / 255
+  local max = math.max(r, g, b)
+  local min = math.min(r, g, b)
+  local h, s, l
+  if max == min then
+    h = 0
+  elseif max == r and g >= b then
+    h = 60 * (g - b) / (max - min) + 0
+  elseif max == r and g < b then
+    h = 60 * (g - b) / (max - min) + 360
+  elseif max == g then
+    h = 60 * (b - r) / (max - min) + 120
+  elseif max == b then
+    h = 60 * (r - g) / (max - min) + 240
+  end
+
+  l = 1 / 2 * (max + min)
+
+  if l == 0 or max == min then
+    s = 0
+  elseif l > 0 and l <= 0.5 then
+    s = (max - min) / (2 * l)
+  elseif l > 0.5 then
+    s = (max - min) / (2 - 2 * l)
+  end
+
+  return math.floor(h), s, l
+end
+
+-- https://stackoverflow.com/questions/68317097/how-to-properly-convert-hsl-colors-to-rgb-colors-in-lua
+
+color.hsl2rgb = function(h, s, l)
+  h = h / 360
+
+  local r, g, b
+
+  if s == 0 then
+    r, g, b = l, l, l
+  else
+    local function hue2rgb(p, q, t)
+      if t < 0 then
+        t = t + 1
+      end
+      if t > 1 then
+        t = t - 1
+      end
+      if t < 1 / 6 then
+        return p + (q - p) * 6 * t
+      end
+      if t < 1 / 2 then
+        return q
+      end
+      if t < 2 / 3 then
+        return p + (q - p) * (2 / 3 - t) * 6
+      end
+      return p
+    end
+
+    local q = l < 0.5 and l * (1 + s) or l + s - l * s
+    local p = 2 * l - q
+    r = hue2rgb(p, q, h + 1 / 3)
+    g = hue2rgb(p, q, h)
+    b = hue2rgb(p, q, h - 1 / 3)
+  end
+
+  return math.floor(r * 255), math.floor(g * 255), math.floor(b * 255)
+end
+
+return color