Article font color on white background

I have noticed all the images used in demo have dark background for good reading of the article heading. My images have fften white background (but not all). Here is good example in other website

writer_white_font_white_background.jpg

I like the way you solved that in blog category page

blog_style_background.jpg

Is there any way of providing simillar fix for images with lighter background or force contrasting background color on font? Thank you

I'm afraid it requires customisation beyond our technical support .