As you have mentioned, it is really true that if a control has lightweight render mode, then the auto render mode, on desktop devices will resolve lightweight. If you would like to resolve classic render mode, it is necessary to make it manually with a custom server side logic by device detection framework.
We also recommend to use lightweight render mode as the classic render mode is not developed any more. Lightweight render mode is also easier for customizing. If you meet any difficulties with using lightweight render mode, you can contact us for any further assistance.
As you have already said, lightweight and classic render mode have different rendering. They have also different base
files. Depending on the resolved skin, we refer the suitable styles. Base
styles for lightweight render mode are in the Skin/ControlsNameLite.css
styles for lightweight render mode is in Skin/
Do nоt hesitate to contact us if you have other questions.
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