Customizing blocks on front page

Hi,

1. Please try this custom css for background color: http://screencast.com/t/3Nd1pdmNKB

.td-page-wrap{
background-color: rgba(42, 172, 203, 0.38) !important;
}

2. I think that you refer to this shadow: http://screencast.com/t/w3vHbM9pk so please try this css code in Theme Panel > Custom Css: http://screencast.com/t/K7V92H9tCC0

.td-full-layout .td-footer-wrap{
background: none !important;
}

3. Please remove this code from td_block.php: http://screencast.com/t/MCSkzGbWD
And also add this css to remove underline when you hover: http://screencast.com/t/ztNDEiKt

.td_block_wrap .block-title a:hover{
text-decoration: none !important;
cursor: default;
}
Also for background I think that you want something like this: https://forum.tagdiv.com/topic/background-color-for-title-of-block-or-widget/
For the arrows you can use a background image to replace them, as the arrows are images and you cannot change the color: http://screencast.com/t/Xsbs6PmTqZ5

.td_ajax-prev-page, .td-ajax-next-page{
background-color: blue;
}

4. You can try customize a module for example comment this code in module_search.php: http://screencast.com/t/jwd5LedNCV use it for category page from Theme Panel: http://screencast.com/t/3OW8Hp2l8
And use this custom css: http://screencast.com/t/eUkykVx7QCe
Or you can create a new module: https://forum.tagdiv.com/topic/has-anyone-successfully-made-custom-blocks-that-show-up-in-visual-composer/#post-10478

5. You can add an extra class to the column and target block 10 using inspector tool.

6. Unfortunately theme doesn’t an option for this and you will need custom work for this. You can try to follow this topic but this will affect all blocks: https://forum.tagdiv.com/topic/how-to-sticky-post-on-big-silider/#post-12938

7. WordPress has some default cropping sizes http://screencast.com/t/ifk8fE1HYk and we added more sizes inside the functions.php file – http://screencast.com/t/2QaaubXnqxL
Those sizes are used on modules and sliders (including the Big Slider), you can read here about the thumbs used on modules and sliders https://forum.tagdiv.com/modules-and-blocks/ It isn’t an ideal image size so it can look good on all thumbs.

Thanks!