This pseudo-category is in fact a document explaining a technique to optimize and―in a sense―simplify SVG files. The files in this category merely constitute a collection of examples illustrating that technique. These hidden categories are only intended for Wikimedia contributors who want to add or optimize SVG files, but the documented techniques are in no way specific to Wikimedia. Besides being scalable, the images represented by the files in this category have nothing in common (only the files have historical implementation details in common). Most of these documents are in a poor state, as of October 2024, and the effect of some of these so-called simplification techniques would be considered as complexification by most. To address these issues, see discussion about an action plan.

Often it is possible to draw circle structures with the stroke-linecap=round attribute, or rectangular ones with stroke-linecap=square.^{[clarification needed]}

Examples how to draw a circle

There are different possibilities to draw a simple bordered circle as shown with this example.

1. Bad solution: Very complicated drawing with cubic arcs (not a true trigonometric circle !)^{[clarification needed]}
2. conventional: <circle fill="#FEDE58" stroke="#000" stroke-width="10.5" x="175" cy="175" r="154"/>
   or in relatives:<circle fill="#FEDE58" stroke="#000" stroke-width="3%" cx="50%" cy="50%" r="44%"/>
3. with linecapping: needs two paths,
   outside border <path d="m175,175h0" stroke-width="318.5" stroke-linecap="round" stroke="#000"/>
   and inside disk <path d="m175,175h0" stroke-width="298.5" stroke-linecap="round" stroke="#FEDE58"/>^{[clarification needed]}
4. with the "a" element^{[clarification needed]}: as a true circle
   <path fill="#FEDE58" stroke="#000" stroke-width="10.5" d="m175,21a154,154 0 1,0 0,308 154,154 0 1,0 0-308"/>

or shortened (not a true trigonometric circle – but for most cases the small flat interval won't matter)
<path fill="#FEDE58" stroke="#000" stroke-width="10.5" d="m174,21a154,154 0 1,0 2,0z"/>

While the shortened version of (4) will be the best solution for simple drawings, linecapping as in (3) can be an advantage, esp. when used with the stroke-dasharray attribute.
Needless to say that a mere disk without the border becomes simpler.