Hi. message was in spam for some reason. Button can't be changed to another color. But it depends on element in header. If you use shop/comparison layout for header, login button is made as icon, so, it will be icon in mobile header also. 

Also, you can use custom header builder via Elementor

How to change the login button box color in black and icon in white like search button

https://bit.ly/2PhkEiJ

because you set first post to be sticky.

Let me clear it's not working. I am trying to sort my post date wise descending order

After 2 days, today I created a fresh post and posted but it is gone on 2nd position

Could you check this properly

https://monosnap.com/file/5q7cFG8rBu9JbRSQ76wGz7NSXzrY71

1. date in post loop shows date of latest modification. you can change this in theme option - global enable to use date of publishing. So, no issue there

2. next theme update will have no post formats and you can add reviews via Reviewbox in Gutenberg. We recommend to use it now.

Hi Igor,

1. Here is my homepage, Post is not shorting properly. Want to short date wise

Used Remag-- elementor-- News/Directory list. Data source -- Category or tag also tried auto detect archive data

https://monosnap.com/file/qgCBQ2sVZNClRD7bKZfG6PwDTFZoVW

https://monosnap.com/file/qIJZdUQuph5UWcezxlA4tiYOAT49az

www.technoswami.com

2. Please help me for snap area - https://monosnap.com/file/Tq2jHHhxctP6vWdTJSvu8T6lzltr5x

.newsdetail h2{color:red}

2. Currently, you already have customization for listing. We can provide help only with regular theme. If you have customized our layouts, you are fully responsible for all bugs and issues which are caused by your css or modifications

Here is how regular theme looks https://remag.wpsoul.net/category/laptops/ you can disable hot counter in list. We recommend to keep original files if you don't have skills for customizations. 

Thanks, Igor

1. Here using ReMag -- Elementor -- News/Directory list - Click here

Need to change heading title font colour as attached 

2. Featured section and Directory list content area not well matching - https://monosnap.com/file/LM2EJm9ZFp8YGg3hadDrvpN1il4bO3

.rehub_chimp_flat #mc_embed_signup
input#mc-embedded-subscribe{background-color:red !important}

Hi Igor,

Unable to change Subscribe newsletter button colour (red). Please check

See footer newsletter: https://www.technoswami.com

Code - .rehub_chimp_flat #mc_embed_signup input#mc-embedded-subscribe{background-color:red}

link which you provided has no sticky sidebar

2. we don't recommend to change any spacing. it must have spacing for different reasons, once you change it, we don't guarantee bug free for mobiles and different situations

Thanks, it's working now

1. Sticky sidebar not working on homepage sidebar https://monosnap.com/file/8YWb1eI4FIm5qtJHUgI9Q6FlN94HsR

2. Reduce spacing on post area - https://monosnap.com/file/9v73knvzCUQEXdYXN0iDBFdK4jeu71

I updated code in documentation. It must work now

Header Menu -- > Add custom content on top line - https://monosnap.com/file/Y4OJZC7BvsJps6Mlu81FR7aNBZEMXw

Where did you place them?

1. Unable to see icons on header top line, used codes from below docs - https://monosnap.com/file/OLNQzKcG2mIxrsbOSB5TITtQMjseed

Used code - https://rehubdocs.wpsoul.com/docs/rehub-theme/basic-settings/how-to-add-top-line-on-site/