Add more options of how the theme is shown#1

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ElitsaPetrova wants to merge 9 commits into

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ElitsaPetrova:master

Commits on May 23, 2018

add list with all options that can be used as theme
Elitsa Petrova
committed
check the existence of given theme
Elitsa Petrova
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add class specified by used theme
Elitsa Petrova
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add string `themes` in the menu container
Elitsa Petrova
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show index and title of each button
Elitsa Petrova
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wrap all buttons
Elitsa Petrova
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add eventlistener on menuTitle
Elitsa Petrova
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add default styles for different themes
Elitsa Petrova
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update readme
Elitsa Petrova
committed