Hey, creator of Scout-App 2 here.

I've spent a lot of hours crafting my property-sort-order. It follows a logical pattern, similar to "concentric" or Mark Otto's approach.

What differentiates it from Recess/Concentric/SMACSS?

• Does not contain duplicates or errors
• Does not contain outdated/deprecated properties no longer supported by browsers
• Contains all CSS Properties (more than double any alternative) listed by MDN and W3C
• Contains all vendor prefixes currently in use by major browsers
• All vendor prefixes are placed on the line prior to their native versions

The methodology behind the order is based on highest impact on pixel paint, then box-model, then type treatment, then less common at the bottom.

Here is an example with some common properties and their order, with comments for each grouping:

.example:before {
    /* Effects if the element exists */
    content: '';
    /* Highest effect of where pixel painting begins */
    position: relative;
    top: 6px;
    left: 10px;
    /* How the element is displayed and layout */
    display: inline-flex;
    justify-content: end;
    /* Overall size, max amount of pixels that can be painted */
    width: 100%;
    height: 100px;
    min-width: 100px;
    max-width: 600px;
    /* Effects the most amount of pixel paint in the element */
    background-color: #F00;
    background-image: url('file.png');
    background-position: 10px 10px;
    /* Box model */
    border: 1px solid #000;
    margin: 5px;
    padding: 2px;
    padding-top: 4px;
    /* Text treatment */
    color: #333;
    font-family: sans-serif;
    line-height: 2;
    /* Less common properties */
    transform: scale(0.9);
    z-index: 10;
}

The full rule set can be seen here:

• https://github.com/TheJaredWilcurt/tjw-sasslint-rules/blob/master/tjwsasslint.yml#L100

My property-sort-order is the least error-prone and most comprehensive option available. I would like it added to the Sass-Lint default options to help others avoid the issues I've ran into using the other existing options.