How to create a Photoshop frame with styles ? Select a layer in the layers panel and then goto the layer menu and layer styles and stroke and then set the size to greater than zero and set the position to inside. You can set it to be any color such as a solid color but you can also fill with a gradient as well as a pattern via the stroke panel by changing the fill type to gradient etc. To change the stroke at any point go to the layer and double click the stroke entry
You can make a design in numerous ways such as using a combination of shapes. Generate a rectangle (select shape as the option in the top left) by using the rectangle tool. Apply another rectangle shape but a little smaller and then align the second shape on top of the first shape and then select both via the layer panel and then go to the layer menu and then combine shapes and use the subtract front shape.
You can now add a glow / bevel / shadow / stroke / overlay etc to this by going to the presets panel for the layer effects. You can also import a huge number of the ASL files into the panel and these can then be applied quickly to your art
You can also use a selection to develop an edge for use with the shadow / bevel / glow etc. Select the part of the image you want with the marquee tool and then go to the select menu and invert the selection and then fill the selection with white or black or solid color. With the result, copy and paste and the result will be a layer on top of the image which can then be used as your object (and it can be duplicated, warped, distorted, transformed in countless ways, you may even like to convert it into a smart object as well as export your design to the CC library for future work. With the new layer, apply any of the presets. The selection can take many forms so all kinds of possible frames can be quickly created using this approach and not just using a rectangular selection such as using the polygonal lasso selection tool instead to create the selection.
You can fill a selection with all kinds of brush strokes to create amazing framed designs. Create a quick selection using the polygonal selection as above. Select the brush tool and select a brush stroke from the presets. Copy and paste the selection and then go to the window menu and brush settings and set the scattering dynamics and color dynamics. Apply the brush stroke to create a super colorful frame with a variety of brush strokes. Go to the layer menu and layer styles and add a bevel or drop shadow to your artwork. You don't even need to create a selection. You can add a new layer and then add the brush strokes to that layer and draw around the edge of any image and that will be the border. Apply the brush stroke in black and gray if you wish.
You can then add a shadow / glow / bevel etc to those brush strokes via the styles panel