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Module:Color contrast: Difference between revisions
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(better error checking) |
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Line 161:
k = k or ''
v = v or ''
if (k:match('^[%s]*(background)[%s]*$') or k:match('^[%s]*(background%-color)[%s]*$')) then
local lum = color2lum(v)
if( lum ~= '' ) then bg, lum_bg = v, lum end
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