Failed to reload the indent-guide-improved package stylesheets

[rcrooks]

Hi @harai

I get these errors when I try to set the syntax theme to Kodex. Hope this is helpful.

Atom: 1.30.0 x64 Electron: 2.0.5 OS: Mac OS X 10.14 Thrown From: indent-guide-improved package 1.4.13

Stack Trace

Failed to reload the indent-guide-improved package stylesheets

At error evaluating function `mix`: color1.toHSL is not a function in /Users/rcrooks/.atom/packages/indent-guide-improved/styles/indent-guide-improved.less:16:20

LessError: error evaluating function `mix`: color1.toHSL is not a function
at /Users/rcrooks/.atom/packages/indent-guide-improved/styles/indent-guide-improved.less:16:20

Commands

     -7:01.4.0 application:open (input.hidden-input)
  2x -0:33.8.0 core:copy (input.hidden-input)
     -0:32.6.0 core:paste (input.hidden-input)

Non-Core Packages

aligner 1.2.4 
aligner-javascript 1.3.0 
atom-beautify 0.33.0 
atom-file-icons 0.6.0 
atom-ide-ui 0.13.0 
atom-to-codepen 1.0.0 
atom-yamljson 0.2.4 
auto-update-packages 1.0.1 
ayu-mirage-ish-syntax 1.1.0 
better-behavior-syntax 0.1.1 
birds-syntax 0.2.1 
busy-signal 1.4.3 
camelcase-to-space 1.0.2 
directory-color 0.3.0 
docblockr 0.13.7 
double-tag 1.5.0 
earthsung-syntax-atom 2.0.0 
eclectic-syntax 0.3.0 
emmet 2.4.3 
emmet-snippets-compatibility 1.0.6 
fancy-bracket-matcher 2.1.0 
flexible-ui 0.10.7 
highlight-selected 0.14.0 
html-wrapper 0.2.0 
ide-html 0.4.2 
ide-json 0.2.1 
ide-yaml 0.4.4 
indent-guide-improved 1.4.13 
intentions 1.1.5 
javascript-snippets 1.2.1 
json-level-color 0.1.4 
json-refs 0.1.3 
kobalt2-syntax 0.2.0 
kodex-syntax 0.1.1 
language-apidoc 0.1.0 
line-number-color 0.2.0 
linen-syntax 0.5.0 
linter 2.2.0 
linter-js-yaml 1.3.0 
linter-jsonlint 1.3.0 
linter-ui-default 1.7.1 
markdown-toc 0.4.2 
multi-cursor 2.1.5 
pear-dark-syntax 1.0.9 
pigments 0.40.2 
platformio-ide-terminal 2.8.4 
rain-syntax 2.1.2 
red-wavy-underline 0.3.3 
simple-code-index 1.7.0 
skeletor-syntax 0.5.0 
snake-case 1.1.0 
splash-ui 0.4.0 
swackets 0.35.0 
sync-settings 0.8.6 
tabs-to-spaces 1.0.5 
talamasca 1.3.0 
tuesday-syntax 0.1.2 
yaml-path-copy 2.1.6 
yaml-sortkey 0.1.0