Final answer:
The control used to align elements horizontally and vertically for uniform appearance in design emphasizes symmetrical balance, often employing a grid system and the use of straight lines for stability and formality.
Step-by-step explanation:
The type of control used to help keep controls aligned horizontally and vertically, giving forms a uniform appearance, is known for emphasizing symmetrical balance and often uses straight or classic lines for structure. Symmetrical balance provides a composition with an overall sense of stability and formality. In graphic design and user interface (UI) design, this practice ensures that elements are aligned in a way that's pleasing to the eye and logical. For instance, grid systems are frequently used in design to organize content and maintain consistent spacing and alignment, both horizontally and vertically. Tools like rulers, guides, and layout grids in design software help designers to achieve the desired visual balance and symmetry.
When examining artworks or designs, one might notice the prevalence of horizontal and vertical lines to add a sense of calm or stability, respectively. These lines play a crucial role in informing how content is organized and perceived, whether it's in a Renaissance painting or on a modern web page. Similarly, when a designer adopts the machine aesthetic, they place horizontal and vertical lines at the forefront of their style, contributing to the coherence and harmony of the design.